But Slater, surveying the graveyard that extended all the way to the cliffside, wondered who had scrawled it there. Had it been the founder of the sect, who had brought his flock to ruin in such a bleak and unforgiving spot? Had it been the last surviving member of the colony?
Or could it have been the carrier himself, aware of the calamity he had brought upon his fellows?
The chances of their ever finding out were slim, nor could he allow himself to become distracted by such questions. Right now, looking out across the desolate cemetery, with its tilting crosses and broken tombstones, he was assessing the lay of the land. Glancing to his left, he saw a cleared spot covered only by a soft white duvet of snow.
“We’ll build the biohazard prefab there,” he told Groves, who was already sticking more of his wire flags into the ground to demarcate its boundaries. He’d erected such structures before and knew that he needed a space about eight feet square. These chambers were always a tight squeeze, but the bigger they got, the more chances there were for a sprung seam or a loose flap compromising the whole thing.
Kozak was already trundling his GPR, on its four hard rubber wheels, between the gateposts and onto the grounds of the graveyard. Parking it beside a rotted tree stump, he pounded his boots on the soil, almost as if he were starting some dance, then knelt, pulling off his gloves, and rubbed the snow and frost away from a patch of earth. He sifted a few grains between his thick fingers, then pressed his cheek against the ground as if he were listening for a heartbeat. Slater and Nika exchanged an amused look, but Slater knew that there had to be a good reason for everything he was doing. Kozak was the best at what he did and he could read the earth like nobody else. Slapping the ground several times, then brushing the dirt from his palms and pants, he declared, “The first foot or two is permafrost, but we can cut through. Three or four feet down, there is bedrock.”
For Slater, that was good news. The graves would have had to be shallow ones.
“But I will need to do a thorough GPR survey of the whole area.”
“There won’t be time,” Slater said, thinking of his timetable, and of the winter storms bearing down from Siberia any day now. “Start over by the precipice, where the erosion’s already started. I need to know that the ground we’ll be working on tomorrow is stable.”
At the edge of the graveyard, there was a gouge in the earth, where the overhanging rock and soil had dropped off into the Bering Sea like a broken diving board. As Slater approached the spot, he felt Kozak grab his sleeve and say, “Wait.”
Pushing the GPR like a stroller, Kozak moved slowly past him, all the while intently studying the computer monitor that was mounted between the two red handles. Nika, at his elbow, looked entranced by the shadowy black-and-white imagery appearing on the screen, and Kozak was only too happy to explain what the images, and the accompanying numbers scrolling down both sides of the monitor, conveyed.
“The transducer,” he said, pointing to one of the twin black antennae mounted on the lower part of the carriage, “is sending pulses of energy into the ground. These pulses, they penetrate materials with different electrical conduction properties and make a kind of reflection, here,” he said, tapping the interface screen. “It is something called dielectric permittivity. And the data, it is all stored in the computer.”
“What’s the data telling you right now?” Slater asked as they approached the graves closest to the edge of the precipice.
Kozak paused before answering. “I will need to analyze it later. But there is something strange. Either the monitor is malfunctioning, or the ground has fracture lines that are not geological in origin.”
“Oh, you mean from when the graves were dug?” the sergeant surmised.
“Something more than that,” Kozak said, still looking a bit puzzled. He pushed the GPR carriage over the plot closest to the area were the cliff had given way, then moved it back and forth slowly, from the top of the grave to its foot. Slater craned his neck to look at the monitor himself, and it vaguely reminded him of looking at a sonogram. What he saw there was a fuzzy image of a long rectangle, with something sharper and harder depicted in the middle of the space. But when Kozak rolled the GPR back again one more time, Slater could see that the edges of the image grew wider and more irregular. Blurred. He could guess what that meant, but he waited for Kozak to say it.
“Frost heaval.”
“The coffins have been shifting in the ground?”
Kozak nodded. “The closer to the cliff they are, the more movement there has been.”
Movement meant damage, and damage meant any number of things might have transpired in the Alaskan soil, from leakage to contamination to—and this he could only hope for—disintegration and harmless dissipation.
“What are the ground temps?” Slater asked, and Kozak punched a few buttons on the computer, bringing up a separate graph on the screen. “At a depth of one meter or so, where most of the coffins are, it’s between minus four and minus ten degrees Celsius.”