There was Trudy, the German shepherd, barking at a stick-one of those brainless behaviors dogs seem to thrive on. I could see her mouth open and shut like a doggie hand puppet. The enthusiasm of her barking caused her whole body to shake, but the sound was reduced by the window glass to the faintest report. Her legs and feet were muddy and I could clearly see the raindrops beading on her coat. Behind her, a wide path through the undergrowth had been flattened and I could see white where a line of saplings had been snapped off at ground level. Maybe a boat trailer had been backed down close to the water's edge to launch an outboard. Faintly, I heard Trudy's owner whistle and then her barely audible call. "Trudy! Truuudy!"

Trudy looked over her shoulder with regret, torn between her current obsession and her need to obey. Obedience won out. She went bounding up the hillside and disappeared over the crest. I lifted my sights to Fiona's house, where the lights were winking on in sequence, probably on timers. I zoomed in on her bedroom window, but there was no sign of movement. Odd that she appeared to be living so close that I nearly reached a hand out to touch a windowpane. Traveling by car, her place was actually a mile and a half away, the long way around. Her side of the reservoir was peppered with expensive homes, where this side was shabby: board-and-batten rentals without much market value. I wondered if Lloyd realized whose house he had in his sights. I wondered if he stared in her bedroom window, watching her undress at night.

I shifted my view again, feeling like a bird skimming across the surface of the lake. I let my gaze come to rest on the narrow end of the reservoir where the vegetation grew densely all the way to the point at which the water met the hill. A sign was posted on a fence post and I could read the larger of the lines. Swimming and boating were forbidden. The light was fading rapidly and I could feel myself strain. I lifted my eyes and stared at the gathering dark. What had I seen?

I closed my eyes and when I opened them again, I felt my perception shift. The alteration was abrupt, like the test to determine which eye is dominant. Cover your left eye with your palm and stare at your right index finger, held out at arm's length. Then remove your palm from your left eye and cover your right eye instead. Looking through the dominant eye, the alignment of your finger against the background remains constant. Using the nondominant eye, the finger will appear to jump to one side. In reality, nothing changes. The finger remains where it is, but the brain registers a difference. I felt a spurt of anxiety and my heart began to thump.

I turned and trotted down the stairs. Leila emerged from her trance long enough to look up at me. She was stretched out full-length, her sock feet resting on the arm of the sofa, her hiking boots on the floor.

I said, "I have to go out for a few minutes. Will you be all right by yourself?"

"I'm here alone all the time," she said, insulted.

"Great. I shouldn't be long, but I'd appreciate your staying put until I get back. Okay?"

"Yeah." She turned her attention to the set again and switched through several channels, finally settling on an old Tom and Jerry cartoon.

I closed the front door behind me and picked my way down the muddy path to my car. The light was draining from the sky and the air temperature was dropping. The rain wasn't falling hard, but it was annoying, nonetheless. I unlocked my car and slid under the wheel. I reached over and popped open the glove compartment. I took out my flashlight and I pushed the button, gratified to see that the battery was still strong. I turned off the flashlight, laid it on the passenger seat while I started the car, and backed out of Lloyd's short drive. I swung around and headed back to the main road. At the intersection, I turned right, drove half a mile, turned right again on Old Reservoir Road, and began the winding ascent. The curves were familiar and I drove with a thumping heart, wishing I had stopped to pee again before I left. Fear is a powerful diuretic.

Ahead, Fiona's house came into view and I pulled over on the berm. I grabbed my flashlight, got out, and set off on foot. Out here, there was still enough ambient light that I could see my way. I climbed the wet grassy hill, my feet slipping out from under me when I least expected it. I paused at the crest of the hill, looking out across the reservoir to the A-frame where Lloyd was living. The lights glowing in the house made it look like a chapel perched on the opposite hill. I hoped Leila wouldn't disappear while I was scrambling through the dark.

Traversing the downside of the hill was even trickier, and I found myself losing purchase, half-slipping, half-sliding as I maneuvered my way along. At the bottom, I turned on my flashlight. The area was cold and silent and the air smelled dank. The water was black near the shoreline and showed no evidence of a current. In places, I could see Trudy's paw prints. I shone the beam of my flashlight along the hill behind me, locating the boulder I'd seen and the path of broken saplings. I stood where I was, following the line of the hill to the top. From where I stood the road wasn't visible. I turned my beam on the silty water, tracing the shallows. The lake bottom apparently dropped off abruptly, but I could see the curve of a chrome bumper glowing dully, like buried treasure. I couldn't read the name on the vanity plate, but I knew I was looking at the trunk of Dow Purcell's silver Mercedes submerged in the depths.