“Sweet mother of…” Lam began in a low voice. Then he went silent and, a moment later, nodded at her.

“Yes. Thank you. Thanks very much.”

“In that case, I shall do my best to be there within the hour. And I sincerely hope that the additional funding will help you and Dr. Lam make better progress. Good day, Dr. Gladstone.”

She lowered the phone. “I wonder how he knew we weren’t making good progress?”

“I don’t know, but I told you the guy had money.”

“That fifteen grand isn’t his own dough.”

“I wouldn’t be so sure about that.”

Moira Crossley waited while Special Agent Pendergast finished his call and slipped the cell phone back into his pocket.

“I beg pardon for the interruption,” he said.

What an odd fellow, she thought. She found his Southern gentlemanly manner and soft accent strangely soothing. But there was nothing soft or particularly gentlemanly in his keen, silvery eyes.

“Quite a few of the lab reports are back. I sent them over to your office for review.”

“I’ve received them but would greatly appreciate a summary.”

“Sure. Let’s go to my office, where we can speak privately.”

They were in the autopsy room and several assistants were still working on the last of the feet, carefully cutting off the shoes, looking for identifying marks, photographing, taking tissue samples, and, where necessary, dissecting and stabilizing the remains to remove dead sea creatures and small parasites that had burrowed into the flesh. Pendergast paused a moment to examine the process, restless eyes taking in everything, then returned his attention to her with a nod of apology.

She led him through the lab and into her office, with its single window overlooking the parking lot. The space was small, but she kept it meticulously neat and spare, a habit gained from years of living on a houseboat at a slip at the Cape Coral Yacht Basin.

“Please sit down.”

Pendergast took a seat and she sat behind her desk. Several files were laid out with military precision. She flipped open the first.

“You had raised the question as to whether the feet had been frozen. They were—immediately following amputation. All of them we’ve examined so far, at least. Microsections of tissue indicate they were frozen fast at a low temperature—somewhere in the range of minus thirty degrees Celsius. That’s much colder than household freezers typically go, which indicates these feet were stored in a professional-grade deep freezer, or even a laboratory freezer.”

“And how do you know this?”

“In freezing, microcrystals of ice grow inside the cells and rupture various membranes. From the pattern, we can get an idea of how fast and deep the freezing was. For these feet, it was both.”

Pendergast inclined his head briefly.

“And we’ve got some interesting results on the DNA testing,” she said, removing another file. “To summarize: a majority of the individuals we’ve tested so far, about sixty, have varying percentages of Native American blood—from 9 percent to 90 percent, with an average around 70 percent. Of the European DNA, the majority can be traced to the Iberian Peninsula—Spain—as well as southern and western Europe. There is also a portion of African DNA in many samples, varying from 3 to 15 percent. This mix is typical of the populations of Central America—in particular Honduras, Nicaragua, Guatemala, and El Salvador. To a lesser extent Panama and Costa Rica. Belize, Mexico, Colombia, and Venezuela are outliers, but still could be a partial match. We’re in the process of analyzing mitochondrial DNA to see if any of the individuals might be related to each other, and I should have the results by tomorrow, at the latest. In any case, Central America seems the overwhelming point of origin.”

Another slow nod.

“A few of the feet had tattoos. Some are generic, bracelets and the like, but others appear to be religious or gang symbols of some kind. One foot was chopped off higher above the ankle than most, and in that case we managed to retrieve almost the entire image.”

“Interesting.”

“The feet all came from adult individuals, in apparent good health, with a roughly fifty-fifty distribution between male and female. Some of the feet had the remnants of toenail polish. We’re looking into identifying sources for that, based on chemical composition or color, but no luck so far.”

She pulled over another file. “Here’s something curious. Many of the soles of the feet, and the shoes, showed signs of pesticide residue—DDT and chlordane, which have been banned in the U.S. for decades. There are significant traces of certain other compounds evident as well, such as sodium hydroxide. Beyond the pesticide residues, there is no commonality we’ve been able to discover.”

She consulted the file, running her finger down the points. “We’ve collected hair, fiber, pollen, and other residues. Nothing of note except this: the pollen is a typical mix of local flora—not Central American. The pollen types point to a spring season—likely this spring, by the freshness of them.”

“Please continue.”

Crossley flipped over a page. “The toxicology reports all came up negative, at least for common toxins and substances. I think you have the list of what we tested for.”

“I do indeed. Now, I wonder if we could go over, just once more, exactly how the feet were amputated.”

She felt a stab of annoyance. “As I mentioned before, the amputations were crude, many done with repeated blows of what seems to be a hatchet, and a dull one at that, others perhaps with a heavy machete. The amputation point varies considerably from just above the ankle—by far the most common—to a few below the knee. In many cases there was no evidence of a tourniquet being employed, although others show signs that a clumsy and ineffectual tourniquet may have been tied around the limb before the amputation. There is no evidence of skilled medical care or first aid. The probability is that most of these victims bled to death.”

“And the angle of the blows?”

“Most vary within, say, forty to seventy degrees from the horizontal—angling down, in other words.”

“And the direction of the amputation?”

Crossley was growing more annoyed. She had discussed this with Pendergast before. “The amputation started with the anterior outside portion of the lower leg, right or left.”

“The blows coming from above.”

“Yes, yes. You know all this—we’ve gone over it.”

“Indeed we have. And now, Dr. Crossley, please humor me by visualizing, in your mind, the actual amputation, taking into account all the factors as you’ve just described them.”

Her annoyance finally got the better of her. “I fail to see the point of this.”

The voice dropped in tone, smooth as honey. “Dr. Crossley, I promise that the point will become clear. I can guide you through the process to make it easier. Close your eyes, take five deep, slow breaths, and then visualize the process of amputation. Consider all the relevant details and make a mental film of the amputation, putting in the real person.”

“That’s peculiar and unscientific.”

“Indulge me. Now, please…” His voice was strangely hypnotic. “Close your eyes.”