Aaron Elkins - Skull Duggery

“Chief Sandoval,” Gideon said quietly, glad to be able to tell the chief something he so desperately wanted to hear. “I don’t think this is a bullet wound at all.”

Once again, Sandoval’s eyes lit up, but warily this time. He’d already had his hopes raised once, only to have them promptly dashed. “But what then would it be? You said yourself, there is no entrance wound. How can an object exit from a body if it has never entered it?”

“It can do it if it’s been inside all along.”

“If it’s-” Sandoval did a classic double take. “If…”

“Come on,” Gideon said, “I want to try something.”

He bent to pick up the slab of all-too-human hide, hesitated as a brief shiver of distaste ran up his spine, then grasped it resolutely by its edges and returned with it to the embalming table, the utterly perplexed Sandoval tagging along a couple of feet behind him. Once there, Gideon held it to the front of the body in about its natural place, although the warping and twisting that went along with mummification made it impossible to do this precisely. Then, grasping the rear portion of the broken sixth rib with his other hand, he tugged it a quarter of an inch upward, which put its front end directly in line with the hole in the chest. A little gentle pressure on the chest, a slight rotation, and the rib’s jagged, broken end pushed through the hole with a fit so tight, so near perfect, that when he let go of both chest and rib, they remained locked together, unmoving.

Sandoval stared, openmouthed. “A rib?” His plump face crinkled with happiness. He began to laugh. “A rib made this hole? His own rib? From inside?”

Gideon laughed along with him, pleased for Sandoval’s sake. It had been the form of the wound that had gotten the gears of his mind going: Somewhere between round and oval, but with a little tail hooking out of it. “Comma shaped” was the way he had described it to himself, and the term had rung a bell with him. “Comma shaped” was also the shorthand term he used in describing to his students the shape of the thoracic ribs in cross-section. Comma-shaped hole, comma-shaped shaft of bone… Could it be…? he had wondered.

It could, and it was.

“He must have hit on his left side,” he said now. “So that when the broken rib punched through, that side was flush up against a rock, or against the ground, which would have resulted in the abrasion ring.”

“Then there is no reason to believe he was murdered?” Sandoval said joyously. He had the result he’d wanted but had hardly dared hope for. “A simple fall, no more!” Then, deciding the situation required more decorum, he gravely added: “A terrible, unfortunate, fatal fall, the poor man.”

“Oh, it would have been fatal, all right, enough to kill him twice over.” He had pulled the chest slab off the rib and laid it aside while they’d been talking, and was again peering into the chest cavity, with the body still on its side.

“What are you looking for now?” Sandoval asked a little nervously.

“Nothing in particular,” Gideon said truthfully. “But I’ve hardly looked at him. As long as I’m here, I ought to see what else I might be able to come up with. You never know.”

“Oh, I don’t think there’s anything else that’s necessary, do you? Perhaps you would permit me to buy you a cup of coffee now? We have an excellent coffeehouse here, yes, right here in Teotitlan, the American tourists kept asking for it, you see, and now I myself have developed a taste for cappuccinos, ha-ha…” On he nattered, arching his body backward, trying to manifest enough psychic force to draw Gideon away from the table. He didn’t like the idea of Gideon continuing to poke around and coming up with God knows what.

Sandoval’s psychic force had no effect on Gideon whatever. “Well…” He was probing gently with his fingers at the cervical vertebrae, or rather at the dried ligaments and intervertebral fibrocartilage that held them together. “Most of the time, people killed in falls-falls from heights-die because they fracture their spines up here in the neck, which tears apart their aortas, so I just wanted to see if… ah, indeed, that’s what we have here. The first cervical vertebra-the atlas-has been completely separated from the second one, the axis. The ligaments and fibrocartilage are torn clear through. In the absence of anything else, that’s a pretty good cause of death right there.”

“So, that’s that, then,” Sandoval said joyously. “A job well done! Muchisimas gracias, profesor, I am so grateful-”

“Hold on, now,” Gideon murmured, mostly to himself. “What have we here?”

Something had caught his eye, toward the back of the rib cage; he rubbed away a bit of dried, tarry black matter, impossible to identify (crud was the technical term usually employed), that was stuck to the interior surface of one of the ribs, and bent to take a closer look. “I’m afraid we might have something worth looking into after all,” he said softly.

Sandoval’s shoulders sagged. The faintest, saddest of sighs escaped his lips. He’d known it was too good to be true. “What?” he asked in a grim monotone, a voice of doom.

“Well, I’m not really sure,” Gideon said. “It looks like… it almost looks like…”

What it almost looked like-what it very much looked like-was a bullet hole. In the ventral surface-the inside surface-of the seventh rib on the right side. Like many of the other ribs, this one had snapped about halfway back, the front piece still connected via the costal cartilages to the sternum, the rearward piece still attached by ligaments to the vertebral column. The hole was in the rearward segment, about three inches from the vertebral column, so that it faced diagonally forward. Much smaller than the wound in Garcia’s chest, almost perfectly round even when seen from a few inches away, and penetrating only partway through the body of the rib, it might have served as a textbook illustration of the not-uncommon situation in which a bullet, having expended almost the last of its energy in getting most of the way through the body, had just enough oomph left to penetrate the surface of the rib but not enough to make it all the way through.

Now it was Gideon who was perplexed. If this was a bullet hole, then where was the original entrance wound? There was only one possibility: the chest wound that Gideon had so confidently, so magisterially, declared to be an exit wound and not even a ballistic exit wound at that. Could a bullet have entered there, under the left nipple, on a trajectory that took it diagonally through the thorax, transpiercing the left lung, the heart, and the right lung before plowing into the ventral surface of the seventh rib on the other side? short answer: yes, it could. Had he been wrong, then, about the broken rib breaking through the chest wall to leave the comma-shaped wound? Given the fit of rib to wound, that seemed virtually impossible. Well, highly- extremely highly-improbable. But if he was right about that, about there not being an entrance wound, then where had this bullet hole in the seventh rib come from? How had the bullet entered the body?

Again, if.

“It almost looks like what?” Sandoval pressed. “Tell me.”

“Look, I may have already jumped the gun once today. If it’s okay with you, let me look him over a little more thoroughly before I do it again.”

What he wanted now was a good, clear look at that seventh rib, but the room was ill lit for a skeletal examination; windowless and with only a pair of discolored fluorescent tubes on the ceiling that threw a flat, undiscriminating light on the body. He needed a slanting light, something that would throw into sharp relief the bumps and crevices and indentations that were the essence of his work.