“What are you looking for?” asked Lien-hua.
“A cave.”
“What? A cave? Why a cave?”
“Mindy had soil caught in the grooves of her toe ring. Yesterday afternoon I compared the soil samples on her toe ring to the samples Ralph collected in the meadow. The soil in her toe ring has a higher clay content than the topsoil does. That and the fact that the killer needed a place out here to be alone with her led me to think he killed her in a cave.”
“Soil? Differences in clay content?” she said skeptically.
“What?”
“I thought you weren’t interested in physical evidence, Dr. Bowers, just geographical understanding?”
Picky, picky.
“Caves are geographic,” I said. “C’mere and look at this.”
I pointed to a small footpath leading off to the left. A deep heel depression was visible in the mud. “The kid at the mall said he was a big guy. If he was carrying her to the meadow, he might have left that.”
“Why didn’t the tech team find that?”
“They weren’t looking for a cave.”
It didn’t take us long to find the mouth of the cave, only forty or fifty meters away. The temperature in a cave remains relatively constant; generally at this latitude it would be cooler than the surrounding area in the summer and warmer in the winter-about 58°F. And today the air leaving the mouth of the cave was condensing in the cool morning. Almost as if the earth were exhaling.
The cave entrance was about two meters wide. I took off my backpack, pulled out my flashlight, and peered down.
She gestured toward my flashlight. “Do you carry that thing with you all the time?”
“A flashlight is a detective’s best friend. Especially this one. Precision-machined high-strength aluminum alloy case, waterproof, ergonomically designed grip-”
She shook her head. “Boys and their toys.”
The cave dropped vertically into the mountain. I couldn’t tell how far. “Well, what do you think?” I asked.
“It’s isolated. It would give him the privacy he needed-”
“No, I mean do you want to go in or should I?” I opened my pack and pulled out my climbing rope, a harness, a few carabiners, and some nylon webbing.
“Do you know what you’re doing?”
“I sure hope so.” I pointed overhead. A stout tree stretched above the entrance to the cave, forking in two near the trunk. “See those branches? See how the bark is worn there?”
“Yeah.”
I tied a loop of webbing around each arm of the branch and clipped them together with two carabiners. “That’s where he anchored the rope.”
“So you’re really going in?”
“How else am I going to see what’s down there?”
I threaded the middle of the rope through the biners and tossed the ends into the cave, pulled on my harness, and clipped the rope through my belay device.
Lien-hua watched me. “What’s that thing for?”
“It’s called a Figure-8,” I said. “The rope passes through it to create friction, and that friction is what slows my descent. I use my right hand, here, as my brake hand to control my speed.”
She stared at the rope. “But how are you going to get back up?”
I held up a couple of ascenders. “That’s what these are for. They slide up the rope and lock off. Of course, I could also use prussiks.” I pointed to a couple two-meter-long loops of smaller diameter rope. “By wrapping those around the climbing rope with a special knot, I can create loops that I can step into. Then, whichever loop you’re not standing on, you slide it up the rope. You take turns stepping and sliding. Kind of like walking vertically.”
“Well…” She peered at the dark mouth of the cave. “You can go this time. I’ll supervise from here.”
I double-checked my harness buckles and anchor system, held the flashlight in my teeth, and tipped backward into the cave.
The floor of the cavern lay about ten meters below me. I didn’t even need to go all the way to the bottom before I began to picture what the killer had done.
I took the light out of my mouth. “Mindy had pale outlines around her hips, didn’t she?” I called up to Lien-hua. “And encircling her upper thighs?”
“Yes.” Her voice floated down to me. “The ME couldn’t figure out how she got them.”
Lividity, the pooling of blood near the skin, begins when the heart stops circulating blood through the body and gravity tugs the blood downward. It might start as early as thirty minutes after the time of death. If she were hanging in a rock-climbing harness when she died, her body weight pressing against the webbing would constrict the blood vessels, keeping the stagnant blood from pooling, creating the outline of the webbing around her upper thighs.
You left her hanging on the rope, didn’t you? You lowered her, left her hanging there in a harness, maybe tied her hands off loosely. Then you could have clipped them into the rope, so she wouldn’t struggle too much. You took off her boots so there wouldn’t be soil samples, even washed her feet when you were done-but you’re not as good as you think. You didn’t scrub her toe ring clean.
The floor of the cave had been brushed to eliminate footprints, but the brushing told me a story too-someone was trying to cover something up. A few dark spots stained the clay beside a nearby rock. We would need to test it, but I suspected those stains were Mindy’s blood.
He could have wrapped some webbing around her legs, maybe her calves. Outside of her jeans it wouldn’t have left ligature marks on her skin. Yeah, just tight enough to control her. She wouldn’t have been able to kick or fight back at all. She would be powerless. She would be his. All night long.
“You OK down there?” Lien-hua called.
“I’m good. Hang on.” I thought I saw something in the corner of the cave. I scanned the area with my flashlight.
A curl of yellow ribbon.
“He brought her here, Lien-hua. There’s water down here too. A pool. I’ll bet that’s where he washed off the body.”
Using the ascenders I worked my way back up the rope to the lip of the cave.
A couple minutes later I had the harness off and was packing up my gear. “We need to get back to the car, get some people up here to work this scene-wait a minute.”
“What?”
“Check your maps. See if this cave appears on any of them.”
She pulled out the maps, looked them over. “Nope. Nothing.” “It’s only known to the locals then. That narrows it down even more. So he knew this cave well enough to know he wouldn’t be disturbed here-that he could have all night to do whatever he wanted to her,” I said.
“And he knows how to rappel,” she said.
“Oh man.”
“What?”
I closed the top flap of my backpack and cinched it tight. “The climbing gym on Wall Street. Her car was found half a block away. They lead trips up into these mountains. Climbing and caving.”
“How do you know that?”
“I paid them a visit yesterday afternoon. Worked out for a while.” I hoisted the pack onto my shoulders. “C’mon. Let’s go.” I turned around, but Lien-hua had already started sprinting down the trail toward the car.
34
It wasn’t easy running with the backpack on, but thankfully I didn’t have to do it very long, plus it was all downhill. In less than fifteen minutes we’d made it to the trailhead.
I heaved off my pack and shoved it in the backseat of the car. I was still huffing from the run. “Yesterday afternoon… I had a few minutes… to walk around downtown… check out the places from the geo profile.” I pulled out the menus and business cards I’d stuffed into the car yesterday along with the brochure from the climbing gym. “I grabbed these.”
“You think our guy might work there?” she asked.
I handed her the brochure, pointed to the phone number. “See if you can reach them. See if… anyone was missing from work… the last couple days.”
I threw open the door and pulled out my computer while she tried her cell phone.