I reached with a hand and took hold of one. I was disappointed at how light it felt. It weighed hardly anything. I pulled at it, plucking it from all its stems.

I made myself comfortable on a sturdy branch, my back to the trunk of the tree. Above me stood a shifting roof of green leaves that let in shafts of sunlight. All round, for as far as I could see, hanging in the air, were the twisting and turning roads of a great suspended city. A pleasant breeze ran through the trees. I was keenly curious. I examined the fruit.

Ah, how I wish that moment had never been! But for it I might have lived for years—why, for the rest of my life—on that island. Nothing, I thought, could ever push me to return to the lifeboat and to the suffering and deprivation I had endured on it—nothing! What reason could I have to leave the island? Were my physical needs not met here? Was there not more fresh water than I could drink in all my lifetime? More algae than I could eat? And when I yearned for variety, more meerkats and fish than I could ever desire? If the island floated and moved, might it not move in the right direction? Might it not turn out to be a vegetable ship that brought me to land? In the meantime, did I not have these delightful meerkats to keep me company? And wastn’t Richard Parker still in need of improving his fourth jump? The thought of leaving the island had not crossed my mind once since I had arrived. It had been many weeks now—I couldn’t say how many exactly—and they would stretch on. I was certain about that.

How wrong I was.

If that fruit had a seed, it was the seed of my departure.

The fruit was not a fruit. It was a dense accumulation of leaves glued together in a ball. The dozens of stems were dozens of leaf stems. Each stem that I pulled caused a leaf to peel off.

After a few layers I came to leaves that had lost their stems and were flatly glued to the ball. I used my fingernails to catch their edges and pull them off. Sheath after sheath of leaf lifted, like the skins off an onion. I could simply have ripped the “fruit” apart—I still call it that for lack of a better word—but I chose to satisfy my curiosity in a measured way.

It shrunk from the size of an orange to that of a mandarin. My lap and the branches below were covered with thin, soft leaf peelings.

It was now the size of a rambutan.

I still get shivers in my spine when I think of it.

The size of a cherry.

And then it came to light, an unspeakable pearl at the heart of a green oyster.

A human tooth.

A molar, to be exact. The surface stained green and finely pierced with holes.

The feeling of horror came slowly. I had time to pick at the other fruit.

Each contained a tooth.

One a canine.

Another a premolar.

Here an incisor.

There another molar.

Thirty-two teeth. A complete human set. Not one tooth missing.

Understanding dawned upon me.

I did not scream. I think only in movies is horror vocal. I simply shuddered and left the tree.

I spent the day in turmoil, weighing my options. They were all bad.

That night, in bed in my usual tree, I tested my conclusion. I took hold of a meerkat and dropped it from the branch.

It squeaked as it fell through the air. When it touched the ground, it instantly made for the tree.

With typical innocence it returned to the spot right next to me. There it began to lick its paws vigorously. It seemed much discomforted. It panted heavily.

I could have left it at that. But I wanted to know for myself. I climbed down and took hold of the rope. I had made knots in it to make my climbing easier. When I was at the bottom of the tree, I brought my feet to within an inch of the ground. I hesitated.

I let go.

At first I felt nothing. Suddenly a searing pain shot up through my feet. I shrieked. I thought I would fall over. I managed to take hold of the rope and pull myself off the ground. I frantically rubbed the soles of my feet against the tree trunk. It helped, but not enough. I climbed back to my branch. I soaked my feet in the bucket of water next to my bed. I wiped my feet with leaves. I took the knife and killed two meerkats and tried to soothe the pain with their blood and innards. Still my feet burned. They burned all night. I couldn’t sleep for it, and from the anxiety.

The island was carnivorous. This explained the disappearance of the fish in the pond. The island attracted saltwater fish into its subterranean tunnels—how, I don’t know; perhaps fish ate the algae as gluttonously as I did. They became trapped. Did they lose their way? Did the openings onto the sea close off? Did the water change salinity so subtly that it was too late by the time the fish realized it? Whatever the case, they found themselves trapped in fresh water and died. Some floated up to the surface of the ponds, the scraps that fed the meerkats. At night, by some chemical process unknown to me but obviously inhibited by sunlight, the predatory algae turned highly acidic and the ponds became vats of acid that digested the fish. This was why Richard Parker returned to the boat every night. This was why the meerkats slept in the trees. This was why I had never seen anything but algae on the island.

And this explained the teeth. Some poor lost soul had arrived on these terrible shores before me. How much time had he—or was it she?—spent here? Weeks? Months? Years? How many forlorn hours in the arboreal city with only meerkats for company? How many dreams of a happy life dashed? How much hope come to nothing? How much stored-up conversation that died unsaid? How much loneliness endured? How much hopelessness taken on? And after all that, what of it? What to show for it?

Nothing but some enamel, like small change in a pocket. The person must have died in the tree. Was it illness? Injury? Depression? How long does it take for a broken spirit to kill a body that has food, water and shelter? The trees were carnivorous too, but at a much lower level of acidity, safe enough to stay in for the night while the rest of the island seethed. But once the person had died and stopped moving, the tree must have slowly wrapped itself around the body and digested it, the very bones leached of nutrients until they vanished. In time, even the teeth would have disappeared.

I looked around at the algae. Bitterness welled up in me. The radiant promise it offered during the day was replaced in my heart by all the treachery it delivered at night.

I muttered, “Nothing but teeth left! Teeth!”

By the time morning came, my grim decision was taken. I preferred to set off and perish in search of my own kind than to live a lonely half-life of physical comfort and spiritual death on this murderous island. I filled my stores with fresh water and I drank like a camel. I ate algae throughout the day until my stomach could take no more. I killed and skinned as many meerkats as would fit in the locker and on the floor of the lifeboat. I reaped dead fish from the ponds. With the hatchet I hacked off a large mass of algae and worked a rope through it, which I tied to the boat.

I could not abandon Richard Parker. To leave him would mean to kill him. He would not survive the first night. Alone in my lifeboat at sunset I would know that he was burning alive. Or that he had thrown himself in the sea, where he would drown. I waited for his return. I knew he would not be late.

When he was aboard, I pushed us off. For a few hours the currents kept us near the island. The noises of the sea bothered me. And I was no longer used to the rocking motions of the boat. The night went by slowly.

In the morning the island was gone, as was the mass of algae we had been towing. As soon as night had fallen, the algae had dissolved the rope with its acid.

The sea was heavy, the sky grey.