Black Rain

McCarter’s gaze moved from Hawker to Danielle. “Here’s the proof: eighty-odd years ago Blackjack Martin stole those crystals from the Chollokwan after they were used in a rain-calling ceremony. Now ask yourself why the Chollokwan would even want it to rain. Agricultural societies want the rain, not hunting societies. The Chollokwan aren’t farmers—they’re hunters and gatherers, nomadic and migratory wanderers. The rain makes their lives exponentially more difficult. It turns the ground to mud and keeps the animals hidden in their dens and nests. It allows what game there is to spread far and wide instead of gathering at the edge of the rivers. If the Chollokwan were just simple nomads they would abhor the rains, but they don’t, they pray for them to come, just like the early Maya did.”

“Why?” Danielle asked.

“Partially because of their heritage,” McCarter admitted. “A learned and ingrained behavior. But there’s another reason as well, a more important reason.”

He paused for a moment, and seemed to decide that actions would speak louder than words. He took the canteen from his belt, unscrewed the top and began to pour the contents over the torpedo-shaped grub in the box.

As water hit the thing, it jumped, shrieking as if it had been zapped with a thousand volts. It banged into the grate covering the box and fell back again, writhing around violently, flipping itself onto its feet and darting from corner to corner in search of safety.

As McCarter kept pouring, the parasite hissed and spat, scratching at the smooth metal walls, trying to climb. It jumped and clung to the grate, falling back as he finished dumping the canteen over it.

By now, the water sloshed an inch deep in the metal box and there was no way for the creature to escape it. It shot to the front corner and tried in vain to climb the wall. It jumped and fell and jumped again. Springing repeatedly, doing all it could to stay out of the water, until it landed on its back and began convulsing in a series of violent spasms. The box shook with its movement as the convulsions became more pronounced. In thirty seconds it was writhing in a death spiral of agony.

Eventually the intensity of the reaction began to wane and the angles of the grub’s body began to soften, deforming into a thick, black ooze. The chemical bonds of its structure were breaking down and separating. It was melting, like a slug coated in a thick layer of salt. The water in the box was turning murky and dark with the residue.

“What the hell happened to it?” Hawker asked.

Danielle answered. “It’s secreting that chemical base I told you about: the dark oil that was destroying Verhoven’s jacket. A substance like that can be as destructive as sulfuric acid, only in the opposite way. It’s caustic instead of corrosive, but the results are similar.”

McCarter nodded his agreement. “In the temple their secretions were used to counteract the acidic water. But the canteen was filled with distilled water. No acid content. So the animal’s own secretions are destroying it.”

“It rained all day and all through the night,” he added, quoting the ancient Mayan text. “And the earth was blackened beneath it. This is how the wooden people were destroyed, and these are the Zipacna, the sons or creations of the wooden people.”

“From the legend,” Danielle said, and before he could correct her, she added, “and in reality.”

Hawker stared at the animal dissolving in its own fluids. At first it struck him as odd that the creature’s own reaction could destroy it, but even in humans the body’s overreactions were sometimes self-destructive and deadly. Autoimmune disease and allergies were a prime example. Anaphylactic shock could cause a sudden massive drop in blood pressure from a small quantity of otherwise harmless allergen. He could think of other examples, including a friend who’d died when his plane skidded off the runway into shallow but frigidly cold water. Undamaged as the plane was, all Hawker’s friend had to do was pop the canopy and release his seat belt. But the water was so cold that his body instantly restricted the blood flow to his extremities, a natural defense mechanism designed to maintain the body’s core heat. In this case, it caused the pilot’s hands to clench into unusable fists, and Hawker’s friend drowned in ten feet of water, otherwise unharmed by the crash.

As he stared at the dead grub, Hawker guessed that the thing had met a similar fate. As soon as McCarter had dumped the canteen over it, the grub began releasing the base secretions, manufacturing them as a defense mechanism possibly in proportion to the amount of water hitting it. Only, without the water being acidic, the animal’s secretions had nothing to counteract, and its own defense mechanism destroyed it.

He looked at Danielle, who nodded her agreement as McCarter began to summarize.