In any case, Maxwell was gone now, and the others with him. Only Carlos and Crocker, and two guides, had stayed. Now there was just Carlos. Whittlesey returned to the note.

Use my notebook and the artifacts, as you see fit, to help restore my good standing with the Museum. But above all else, take care of this figurine. I am convinced that its worth to anthropology is incalculable. We discovered it yesterday by accident. It seems to be the centerpiece of the Mbwun cult. However, there is no other trace of habitation nearby. This strikes me as odd.

Whittlesey paused. He hadn’t described the discovery of the figurine in his field notes. Even now, his mind resisted the memory.

Crocker had wandered off the trail for a better look at a jacamar; otherwise they’d never have found the hidden path, slanting down steeply between moss-slick walls. Then, that crude hut, half-buried among ancient trees, in the wet vale where daylight barely penetrated … The two Botocudo guides, normally chattering nonstop to each other in Tupian, shut up immediately. When questioned by Carlos, one of them just muttered something about a guardian of the hut, and a curse on anybody who violated its secrets. Then, for the first time, Whittlesey had heard them speak the word Kothoga. Kothoga. The shadow people.

Whittlesey was skeptical. He’d heard talk of curses before—usually, right before a request for higher wages. [6] But when he emerged from the hut, the guides were gone.

... Then that old woman, blundering out of the forest. She was probably Yanomamo, obviously not Kothoga. But she knew of them. She had seen them. The curses she’d hinted at ... And the way she’d just melted back into the forest, more like a jaguar yearling than a septuagenarian.

Then, they turned their attention to the hut.

The hut ... Gingerly, Whittlesey allowed himself to remember. It was flanked by two stone tablets with identical carvings of a beast sitting on its haunches. Its claw held something weathered and indistinguishable. Behind the hut lay an overgrown garden, a bizarre oasis of bright color amid the green fastness.

The floor of the hut was sunken several feet, and Crocker almost broke his neck on the way in. Whittlesey followed him more carefully, while Carlos simply knelt in the entranceway. The air inside was dark and cool and smelt of decaying earth. Switching on his flashlight, Whittlesey saw the figurine sitting on a tall earthen mound in the middle of the hut. Around its base lay a number of strangely carved discs. Then the flashlight reached the walls.

The hut had been lined with human skulls. Examining a few of the closest, Whittlesey noticed deep scratch marks he could not immediately understand. Ragged holes yawned through the tops. In many cases, the occipital bone at the base of the skull was also smashed and broken off, the heavy squamosal bones completely gone.

His hand shook, and the flashlight failed. Before he switched it on again, he saw dim light filtering through thousands of eye sockets, dust motes swimming sluggishly in the heavy air.

Afterward, Crocker decided he needed a short walk—to be alone for a while, he’d told Whittlesey. But he hadn’t come back.

[7] The vegetation here is very unusual. The cycads and ferns look almost primordial. Too bad there isn’t time for more careful study. We’ve used a particularly resilient variety as packing material for the crates; feel free to let Jörgensen take a look, if he’s interested.

I fully expect to be with you at the Explorer’s Club a month from now, celebrating our success with a brace of dry martinis and a good Macanudo. Until then, I know I can entrust this material and my reputation to you.

Your colleague,

Whittlesey

He inserted the letter beneath the lid of the crate.

“Carlos,” he said, “I want you to take this crate back to Pôrto de Mós, and wait for me there. If I’m not back in two weeks, talk to Colonel Soto. Tell him to ship it back with the rest of the crates by air to the Museum, as agreed. He will draw your wages.”

Carlos looked at him. “I do not understand,” he said. “You will stay here alone?”

Whittlesey smiled, lit a second cigarette, and resumed killing ticks. “Someone has to bring the crate out. You should be able to catch up with Maxwell before the river. I want a couple of days to search for Crocker.”

Carlos slapped his knee. “Es loco! I can’t leave you alone. Si te dejo atrás, te morirías. You will die here in the forest, Señor, and your bones will be left to the howler monkeys. We must go back together, that is best.”

Whittlesey shook his head impatiently. “Give me the Mercurochrome and the quinine, and the dried beef from your pack,” he said, pulling the filthy sock back on and lacing his boot.

Carlos started unpacking, still protesting. Whittlesey [8] ignored him, absently scratching insect bites on the back of his neck and staring up toward Cerro Gordo. “They will wonder, Señor. They will think I left you. It will be very bad for me,” Carlos said rapidly, placing the items in Whittlesey’s pack. “The cabouri flies will eat you alive,” he continued, moving over to the crate and lashing it shut. “You will catch malaria again, and die this time. I will stay with you.”

Whittlesey stared at the shock of snow-white hair plastered to Carlos’s sweaty forehead. That hair had been pure black yesterday, before Carlos looked into the hut. Carlos met his gaze for a moment, then lowered his eyes.

Whittlesey stood up. “Adiós,” he said, and disappeared into the bush.

By late afternoon, Whittlesey noticed that the thick, low clouds had returned to shroud Cerro Gordo. For the last several miles, he had been following an ancient trail of unknown origin, barely a narrow alley in the brush. The trail cleverly worked its way through the blackwater swamps surrounding the base of the tepui, the soggy, jungle-clotted plateau that lay ahead. The trail had the logic of a human trail, Whittlesey thought. It moved with obvious purpose; animal tracks often wandered. And it was heading for a steep ravine in the shoulder of the approaching tepui. Crocker must have come this way.

He stopped to consider, unconsciously fingering the talisman—a gold arrow overlaid by another of silver—that had hung around his neck since childhood. Besides the hut, they’d seen no sign of human habitation for the last several days except a long-deserted root-gatherer village. Only the Kothoga could have created this path.

As he approached the plateau, he could see a few braids of water cascading down its steep flanks. He would camp at the bottom tonight, and make the thousand-meter ascent in the morning. It would be steep, [9] muddy, and possibly dangerous. If he met the Kothoga—well, he would be trapped.

But he had no reason to think the Kothoga tribe was savage. After all, it was this other creature, Mbwun, to which local myth cycles ascribed all the killing and savagery. Strange—an unknown creature, supposedly controlled by a tribe nobody had seen. Could Mbwun actually exist? he wondered. Conceivably, a small remnant could be alive in this vast rain forest; the area was virtually unexplored by biologists. Not for the first time, he wished that Crocker hadn’t taken his own Mannlicher .30 06 when he’d left camp.

But first, Whittlesey realized, he had to locate Crocker. Then he could search for the Kothoga, prove they hadn’t died out centuries before. He’d be famous—the discoverer of an ancient people, living in a kind of Stone Age purity deep in the Amazon, on a plateau that floated above the jungle like Arthur Conan Doyle’s The Lost World.

There was no reason to fear the Kothoga. Except that hut ...

Suddenly, a sharp sickly smell assailed his nostrils, and he stopped. There was no mistaking it—a dead animal, and a big one. He took a dozen steps as the smell intensified. His heart quickened with anticipation: perhaps the Kothoga had butchered an animal nearby. There might be artifacts left at the site—tools, weapons, perhaps even something ceremonial in nature.