Near evening Reao Island melted into the distance, and the Nautilus noticeably changed course. After touching the Tropic of Capricorn at longitude 135°, it headed west–northwest, going back up the whole intertropical zone. Although the summer sun lavished its rays on us, we never suffered from the heat, because thirty or forty meters underwater, the temperature didn’t go over 10° to 12° centigrade.

By December 15 we had left the alluring Society Islands in the west, likewise elegant Tahiti, queen of the Pacific. In the morning I spotted this island’s lofty summits a few miles to leeward. Its waters supplied excellent fish for the tables on board: mackerel, bonito, albacore, and a few varieties of that sea serpent named the moray eel.

The Nautilus had cleared 8,100 miles. We logged 9,720 miles when we passed between the Tonga Islands, where crews from the Argo, Port–au–Prince, and Duke of Portland had perished, and the island group of Samoa, scene of the slaying of Captain de Langle, friend of that long–lost navigator, the Count de La Pérouse. Then we raised the Fiji Islands, where savages slaughtered sailors from the Union, as well as Captain Bureau, commander of the Darling Josephine out of Nantes, France.

Extending over an expanse of 100 leagues north to south, and over 90 leagues east to west, this island group lies between latitude 2° and 6° south, and between longitude 174° and 179° west. It consists of a number of islands, islets, and reefs, among which we noted the islands of Viti Levu, Vanua Levu, and Kadavu.

It was the Dutch navigator Tasman who discovered this group in 1643, the same year the Italian physicist Torricelli invented the barometer and King Louis XIV ascended the French throne. I’ll let the reader decide which of these deeds was more beneficial to humanity. Coming later, Captain Cook in 1774, Rear Admiral d’Entrecasteaux in 1793, and finally Captain Dumont d’Urville in 1827, untangled the whole chaotic geography of this island group. The Nautilus drew near Wailea Bay, an unlucky place for England’s Captain Dillon, who was the first to shed light on the longstanding mystery surrounding the disappearance of ships under the Count de La Pérouse.

This bay, repeatedly dredged, furnished a huge supply of excellent oysters. As the Roman playwright Seneca recommended, we opened them right at our table, then stuffed ourselves. These mollusks belonged to the species known by name as Ostrea lamellosa, whose members are quite common off Corsica. This Wailea oysterbank must have been extensive, and for certain, if they hadn’t been controlled by numerous natural checks, these clusters of shellfish would have ended up jam–packing the bay, since as many as 2,000,000 eggs have been counted in a single individual.

And if Mr. Ned Land did not repent of his gluttony at our oyster fest, it’s because oysters are the only dish that never causes indigestion. In fact, it takes no less than sixteen dozen of these headless mollusks to supply the 315 grams that satisfy one man’s minimum daily requirement for nitrogen.

On December 25 the Nautilus navigated amid the island group of the New Hebrides, which the Portuguese seafarer Queirós discovered in 1606, which Commander Bougainville explored in 1768, and to which Captain Cook gave its current name in 1773. This group is chiefly made up of nine large islands and forms a 120–league strip from the north–northwest to the south–southeast, lying between latitude 2° and 15° south, and between longitude 164° and 168°. At the moment of our noon sights, we passed fairly close to the island of Aurou, which looked to me like a mass of green woods crowned by a peak of great height.

That day it was yuletide, and it struck me that Ned Land badly missed celebrating “Christmas,” that genuine family holiday where Protestants are such zealots.

I hadn’t seen Captain Nemo for over a week, when, on the morning of the 27th, he entered the main lounge, as usual acting as if he’d been gone for just five minutes. I was busy tracing the Nautilus’s course on the world map. The captain approached, placed a finger over a position on the chart, and pronounced just one word:

“Vanikoro.”

This name was magic! It was the name of those islets where vessels under the Count de La Pérouse had miscarried. I straightened suddenly.

“The Nautilus is bringing us to Vanikoro?” I asked.

“Yes, professor,” the captain replied.

“And I’ll be able to visit those famous islands where the Compass and the Astrolabe came to grief?”

“If you like, professor.”

“When will we reach Vanikoro?”

“We already have, professor.”

Followed by Captain Nemo, I climbed onto the platform, and from there my eyes eagerly scanned the horizon.

In the northeast there emerged two volcanic islands of unequal size, surrounded by a coral reef whose circuit measured forty miles. We were facing the island of Vanikoro proper, to which Captain Dumont d’Urville had given the name “Island of the Search”; we lay right in front of the little harbor of Vana, located in latitude 16° 4′ south and longitude 164° 32′ east. Its shores seemed covered with greenery from its beaches to its summits inland, crowned by Mt. Kapogo, which is 476 fathoms high.

This dreadful sight was the first of a whole series of maritime catastrophes that the Nautilus would encounter on its run. When it plied more heavily traveled seas, we often saw wrecked hulls rotting in midwater, and farther down, cannons, shells, anchors, chains, and a thousand other iron objects rusting away.

Meanwhile, continuously swept along by the Nautilus, where we lived in near isolation, we raised the Tuamotu Islands on December 11, that old “dangerous group” associated with the French global navigator Commander Bougainville; it stretches from Ducie Island to Lazareff Island over an area of 500 leagues from the east–southeast to the west–northwest, between latitude 13° 30′ and 23° 50′ south, and between longitude 125° 30′ and 151° 30′ west. This island group covers a surface area of 370 square leagues, and it’s made up of some sixty subgroups, among which we noted the Gambier group, which is a French protectorate. These islands are coral formations. Thanks to the work of polyps, a slow but steady upheaval will someday connect these islands to each other. Later on, this new island will be fused to its neighboring island groups, and a fifth continent will stretch from New Zealand and New Caledonia as far as the Marquesas Islands.

The day I expounded this theory to Captain Nemo, he answered me coldly:

“The earth doesn’t need new continents, but new men!”

Sailors’ luck led the Nautilus straight to Reao Island, one of the most unusual in this group, which was discovered in 1822 by Captain Bell aboard the Minerva. So I was able to study the madreporic process that has created the islands in this ocean.

Madrepores, which one must guard against confusing with precious coral, clothe their tissue in a limestone crust, and their variations in structure have led my famous mentor Professor Milne–Edwards to classify them into five divisions. The tiny microscopic animals that secrete this polypary live by the billions in the depths of their cells. Their limestone deposits build up into rocks, reefs, islets, islands. In some places, they form atolls, a circular ring surrounding a lagoon or small inner lake that gaps place in contact with the sea. Elsewhere, they take the shape of barrier reefs, such as those that exist along the coasts of New Caledonia and several of the Tuamotu Islands. In still other localities, such as Réunion Island and the island of Mauritius, they build fringing reefs, high, straight walls next to which the ocean’s depth is considerable.

While cruising along only a few cable lengths from the underpinning of Reao Island, I marveled at the gigantic piece of work accomplished by these microscopic laborers. These walls were the express achievements of madrepores known by the names fire coral, finger coral, star coral, and stony coral. These polyps grow exclusively in the agitated strata at the surface of the sea, and so it’s in the upper reaches that they begin these substructures, which sink little by little together with the secreted rubble binding them. This, at least, is the theory of Mr. Charles Darwin, who thus explains the formation of atolls—a theory superior, in my view, to the one that says these madreporic edifices sit on the summits of mountains or volcanoes submerged a few feet below sea level.

I could observe these strange walls quite closely: our sounding lines indicated that they dropped perpendicularly for more than 300 meters, and our electric beams made the bright limestone positively sparkle.

In reply to a question Conseil asked me about the growth rate of these colossal barriers, I thoroughly amazed him by saying that scientists put it at an eighth of an inch per biennium.

“Therefore,” he said to me, “to build these walls, it took . . . ?”

“192,000 years, my gallant Conseil, which significantly extends the biblical Days of Creation. What’s more, the formation of coal—in other words, the petrification of forests swallowed by floods—and the cooling of basaltic rocks likewise call for a much longer period of time. I might add that those ‘days’ in the Bible must represent whole epochs and not literally the lapse of time between two sunrises, because according to the Bible itself, the sun doesn’t date from the first day of Creation.”

When the Nautilus returned to the surface of the ocean, I could take in Reao Island over its whole flat, wooded expanse. Obviously its madreporic rocks had been made fertile by tornadoes and thunderstorms. One day, carried off by a hurricane from neighboring shores, some seed fell onto these limestone beds, mixing with decomposed particles of fish and marine plants to form vegetable humus. Propelled by the waves, a coconut arrived on this new coast. Its germ took root. Its tree grew tall, catching steam off the water. A brook was born. Little by little, vegetation spread. Tiny animals—worms, insects—rode ashore on tree trunks snatched from islands to windward. Turtles came to lay their eggs. Birds nested in the young trees. In this way animal life developed, and drawn by the greenery and fertile soil, man appeared. And that’s how these islands were formed, the immense achievement of microscopic animals.

Near evening Reao Island melted into the distance, and the Nautilus noticeably changed course. After touching the Tropic of Capricorn at longitude 135°, it headed west–northwest, going back up the whole intertropical zone. Although the summer sun lavished its rays on us, we never suffered from the heat, because thirty or forty meters underwater, the temperature didn’t go over 10° to 12° centigrade.

Almost every day the panels in the lounge were open for some hours, and our eyes never tired of probing the mysteries of the underwater world.

The Nautilus’s general heading was southeast, and it stayed at a depth between 100 and 150 meters. However, from Lord–knows–what whim, one day it did a diagonal dive by means of its slanting fins, reaching strata located 2,000 meters underwater. The thermometer indicated a temperature of 4.25° centigrade, which at this depth seemed to be a temperature common to all latitudes.

On November 26, at three o’clock in the morning, the Nautilus cleared the Tropic of Cancer at longitude 172°. On the 27th it passed in sight of the Hawaiian Islands, where the famous Captain Cook met his death on February 14, 1779. By then we had fared 4,860 leagues from our starting point. When I arrived on the platform that morning, I saw the Island of Hawaii two miles to leeward, the largest of the seven islands making up this group. I could clearly distinguish the tilled soil on its outskirts, the various mountain chains running parallel with its coastline, and its volcanoes, crowned by Mauna Kea, whose elevation is 5,000 meters above sea level. Among other specimens from these waterways, our nets brought up some peacock–tailed flabellarian coral, polyps flattened into stylish shapes and unique to this part of the ocean.

The Nautilus kept to its southeasterly heading. On December 1 it cut the equator at longitude 142°, and on the 4th of the same month, after a quick crossing marked by no incident, we raised the Marquesas Islands. Three miles off, in latitude 8° 57′ south and longitude 139° 32′ west, I spotted Martin Point on Nuku Hiva, chief member of this island group that belongs to France. I could make out only its wooded mountains on the horizon, because Captain Nemo hated to hug shore. There our nets brought up some fine fish samples: dolphinfish with azure fins, gold tails, and flesh that’s unrivaled in the entire world, wrasse from the genus Hologymnosus that were nearly denuded of scales but exquisite in flavor, knifejaws with bony beaks, yellowish albacore that were as tasty as bonito, all fish worth classifying in the ship’s pantry.

After leaving these delightful islands to the protection of the French flag, the Nautilus covered about 2,000 miles from December 4 to the 11th. Its navigating was marked by an encounter with an immense school of squid, unusual mollusks that are near neighbors of the cuttlefish. French fishermen give them the name “cuckoldfish,” and they belong to the class Cephalopoda, family Dibranchiata, consisting of themselves together with cuttlefish and argonauts. The naturalists of antiquity made a special study of them, and these animals furnished many ribald figures of speech for soapbox orators in the Greek marketplace, as well as excellent dishes for the tables of rich citizens, if we’re to believe Athenæus, a Greek physician predating Galen.

It was during the night of December 9–10 that the Nautilus encountered this army of distinctly nocturnal mollusks. They numbered in the millions. They were migrating from the temperate zones toward zones still warmer, following the itineraries of herring and sardines. We stared at them through our thick glass windows: they swam backward with tremendous speed, moving by means of their locomotive tubes, chasing fish and mollusks, eating the little ones, eaten by the big ones, and tossing in indescribable confusion the ten feet that nature has rooted in their heads like a hairpiece of pneumatic snakes. Despite its speed, the Nautilus navigated for several hours in the midst of this school of animals, and its nets brought up an incalculable number, among which I recognized all nine species that Professor Orbigny has classified as native to the Pacific Ocean.

During this crossing, the sea continually lavished us with the most marvelous sights. Its variety was infinite. It changed its setting and decor for the mere pleasure of our eyes, and we were called upon not simply to contemplate the works of our Creator in the midst of the liquid element, but also to probe the ocean’s most daunting mysteries.

During the day of December 11, I was busy reading in the main lounge. Ned Land and Conseil were observing the luminous waters through the gaping panels. The Nautilus was motionless. Its ballast tanks full, it was sitting at a depth of 1,000 meters in a comparatively unpopulated region of the ocean where only larger fish put in occasional appearances.

Just then I was studying a delightful book by Jean Macé, The Servants of the Stomach, and savoring its ingenious teachings, when Conseil interrupted my reading.

“Would master kindly come here for an instant?” he said to me in an odd voice.

“What is it, Conseil?”

“It’s something that master should see.”

I stood up, went, leaned on my elbows before the window, and I saw it.

In the broad electric daylight, an enormous black mass, quite motionless, hung suspended in the midst of the waters. I observed it carefully, trying to find out the nature of this gigantic cetacean. Then a sudden thought crossed my mind.

“A ship!” I exclaimed.

“Yes,” the Canadian replied, “a disabled craft that’s sinking straight down!”

Ned Land was not mistaken. We were in the presence of a ship whose severed shrouds still hung from their clasps. Its hull looked in good condition, and it must have gone under only a few hours before. The stumps of three masts, chopped off two feet above the deck, indicated a flooding ship that had been forced to sacrifice its masting. But it had heeled sideways, filling completely, and it was listing to port even yet. A sorry sight, this carcass lost under the waves, but sorrier still was the sight on its deck, where, lashed with ropes to prevent their being washed overboard, some human corpses still lay! I counted four of them—four men, one still standing at the helm—then a woman, halfway out of a skylight on the afterdeck, holding a child in her arms. This woman was young. Under the brilliant lighting of the Nautilus’s rays, I could make out her features, which the water hadn’t yet decomposed. With a supreme effort, she had lifted her child above her head, and the poor little creature’s arms were still twined around its mother’s neck! The postures of the four seamen seemed ghastly to me, twisted from convulsive movements, as if making a last effort to break loose from the ropes that bound them to their ship. And the helmsman, standing alone, calmer, his face smooth and serious, his grizzled hair plastered to his brow, his hands clutching the wheel, seemed even yet to be guiding his wrecked three–master through the ocean depths!

What a scene! We stood dumbstruck, hearts pounding, before this shipwreck caught in the act, as if it had been photographed in its final moments, so to speak! And already I could see enormous sharks moving in, eyes ablaze, drawn by the lure of human flesh!

Meanwhile, turning, the Nautilus made a circle around the sinking ship, and for an instant I could read the board on its stern:

The Florida
Sunderland, England

No hellos or good mornings for this gent! You would have thought this eccentric individual was simply continuing a conversation we’d already started!

“See!” he went on. “It’s waking up under the sun’s caresses! It’s going to relive its daily existence! What a fascinating field of study lies in watching the play of its organism. It owns a pulse and arteries, it has spasms, and I side with the scholarly Commander Maury, who discovered that it has a circulation as real as the circulation of blood in animals.”

I’m sure that Captain Nemo expected no replies from me, and it seemed pointless to pitch in with “Ah yes,” “Exactly,” or “How right you are!” Rather, he was simply talking to himself, with long pauses between sentences. He was meditating out loud.

“Yes,” he said, “the ocean owns a genuine circulation, and to start it going, the Creator of All Things has only to increase its heat, salt, and microscopic animal life. In essence, heat creates the different densities that lead to currents and countercurrents. Evaporation, which is nil in the High Arctic regions and very active in equatorial zones, brings about a constant interchange of tropical and polar waters. What’s more, I’ve detected those falling and rising currents that make up the ocean’s true breathing. I’ve seen a molecule of salt water heat up at the surface, sink into the depths, reach maximum density at –2° centigrade, then cool off, grow lighter, and rise again. At the poles you’ll see the consequences of this phenomenon, and through this law of farseeing nature, you’ll understand why water can freeze only at the surface!”

As the captain was finishing his sentence, I said to myself: “The pole! Is this brazen individual claiming he’ll take us even to that location?”

Meanwhile the captain fell silent and stared at the element he had studied so thoroughly and unceasingly. Then, going on:

“Salts,” he said, “fill the sea in considerable quantities, professor, and if you removed all its dissolved saline content, you’d create a mass measuring 4,500,000 cubic leagues, which if it were spread all over the globe, would form a layer more than ten meters high. And don’t think that the presence of these salts is due merely to some whim of nature. No. They make ocean water less open to evaporation and prevent winds from carrying off excessive amounts of steam, which, when condensing, would submerge the temperate zones. Salts play a leading role, the role of stabilizer for the general ecology of the globe!”

Captain Nemo stopped, straightened up, took a few steps along the platform, and returned to me:

“As for those billions of tiny animals,” he went on, “those infusoria that live by the millions in one droplet of water, 800,000 of which are needed to weigh one milligram, their role is no less important. They absorb the marine salts, they assimilate the solid elements in the water, and since they create coral and madrepores, they’re the true builders of limestone continents! And so, after they’ve finished depriving our water drop of its mineral nutrients, the droplet gets lighter, rises to the surface, there absorbs more salts left behind through evaporation, gets heavier, sinks again, and brings those tiny animals new elements to absorb. The outcome: a double current, rising and falling, constant movement, constant life! More intense than on land, more abundant, more infinite, such life blooms in every part of this ocean, an element fatal to man, they say, but vital to myriads of animals—and to me!”

When Captain Nemo spoke in this way, he was transfigured, and he filled me with extraordinary excitement.

“There,” he added, “out there lies true existence! And I can imagine the founding of nautical towns, clusters of underwater households that, like the Nautilus, would return to the surface of the sea to breathe each morning, free towns if ever there were, independent cities! Then again, who knows whether some tyrant . . .”

Captain Nemo finished his sentence with a vehement gesture. Then, addressing me directly, as if to drive away an ugly thought:

“Professor Aronnax,” he asked me, “do you know the depth of the ocean floor?”

“At least, Captain, I know what the major soundings tell us.”

“Could you quote them to me, so I can double–check them as the need arises?”

“Here,” I replied, “are a few of them that stick in my memory. If I’m not mistaken, an average depth of 8,200 meters was found in the north Atlantic, and 2,500 meters in the Mediterranean. The most remarkable soundings were taken in the south Atlantic near the 35th parallel, and they gave 12,000 meters, 14,091 meters, and 15,149 meters. All in all, it’s estimated that if the sea bottom were made level, its average depth would be about seven kilometers.”

“Well, professor,” Captain Nemo replied, “we’ll show you better than that, I hope. As for the average depth of this part of the Pacific, I’ll inform you that it’s a mere 4,000 meters.”

This said, Captain Nemo headed to the hatch and disappeared down the ladder. I followed him and went back to the main lounge. The propeller was instantly set in motion, and the log gave our speed as twenty miles per hour.

Over the ensuing days and weeks, Captain Nemo was very frugal with his visits. I saw him only at rare intervals. His chief officer regularly fixed the positions I found reported on the chart, and in such a way that I could exactly plot the Nautilus’s course.

Conseil and Land spent the long hours with me. Conseil had told his friend about the wonders of our undersea stroll, and the Canadian was sorry he hadn’t gone along. But I hoped an opportunity would arise for a visit to the forests of Oceania.

Almost every day the panels in the lounge were open for some hours, and our eyes never tired of probing the mysteries of the underwater world.

The Nautilus’s general heading was southeast, and it stayed at a depth between 100 and 150 meters. However, from Lord–knows–what whim, one day it did a diagonal dive by means of its slanting fins, reaching strata located 2,000 meters underwater. The thermometer indicated a temperature of 4.25° centigrade, which at this depth seemed to be a temperature common to all latitudes.

By the next morning, November 18, I was fully recovered from my exhaustion of the day before, and I climbed onto the platform just as the Nautilus’s chief officer was pronouncing his daily phrase. It then occurred to me that these words either referred to the state of the sea, or that they meant: “There’s nothing in sight.”

And in truth, the ocean was deserted. Not a sail on the horizon. The tips of Crespo Island had disappeared during the night. The sea, absorbing every color of the prism except its blue rays, reflected the latter in every direction and sported a wonderful indigo tint. The undulating waves regularly took on the appearance of watered silk with wide stripes.

I was marveling at this magnificent ocean view when Captain Nemo appeared. He didn’t seem to notice my presence and began a series of astronomical observations. Then, his operations finished, he went and leaned his elbows on the beacon housing, his eyes straying over the surface of the ocean.

Meanwhile some twenty of the Nautilus’s sailors—all energetic, well–built fellows—climbed onto the platform. They had come to pull up the nets left in our wake during the night. These seamen obviously belonged to different nationalities, although indications of European physical traits could be seen in them all. If I’m not mistaken, I recognized some Irishmen, some Frenchmen, a few Slavs, and a native of either Greece or Crete. Even so, these men were frugal of speech and used among themselves only that bizarre dialect whose origin I couldn’t even guess. So I had to give up any notions of questioning them.

The nets were hauled on board. They were a breed of trawl resembling those used off the Normandy coast, huge pouches held half open by a floating pole and a chain laced through the lower meshes. Trailing in this way from these iron glove makers, the resulting receptacles scoured the ocean floor and collected every marine exhibit in their path. That day they gathered up some unusual specimens from these fish–filled waterways: anglerfish whose comical movements qualify them for the epithet “clowns,” black Commerson anglers equipped with their antennas, undulating triggerfish encircled by little red bands, bloated puffers whose venom is extremely insidious, some olive–hued lampreys, snipefish covered with silver scales, cutlass fish whose electrocuting power equals that of the electric eel and the electric ray, scaly featherbacks with brown crosswise bands, greenish codfish, several varieties of goby, etc.; finally, some fish of larger proportions: a one–meter jack with a prominent head, several fine bonito from the genus Scomber decked out in the colors blue and silver, and three magnificent tuna whose high speeds couldn’t save them from our trawl.

I estimate that this cast of the net brought in more than 1,000 pounds of fish. It was a fine catch but not surprising. In essence, these nets stayed in our wake for several hours, incarcerating an entire aquatic world in prisons made of thread. So we were never lacking in provisions of the highest quality, which the Nautilus’s speed and the allure of its electric light could continually replenish.

These various exhibits from the sea were immediately lowered down the hatch in the direction of the storage lockers, some to be eaten fresh, others to be preserved.

After its fishing was finished and its air supply renewed, I thought the Nautilus would resume its underwater excursion, and I was getting ready to return to my stateroom, when Captain Nemo turned to me and said without further preamble:

“Look at this ocean, professor! Doesn’t it have the actual gift of life? Doesn’t it experience both anger and affection? Last evening it went to sleep just as we did, and there it is, waking up after a peaceful night!”

No hellos or good mornings for this gent! You would have thought this eccentric individual was simply continuing a conversation we’d already started!

“See!” he went on. “It’s waking up under the sun’s caresses! It’s going to relive its daily existence! What a fascinating field of study lies in watching the play of its organism. It owns a pulse and arteries, it has spasms, and I side with the scholarly Commander Maury, who discovered that it has a circulation as real as the circulation of blood in animals.”