“He’d need waders or something. He’d have to get back into his car to drive away. What’s the point of disposing of the body in water if you’re going to take the lake with you back into the car?”

“Being in the water wouldn’t necessarily be a bad idea.”

“Right. He would’ve been covered in blood.”

“Our killer didn’t want the body found. He walked her out to the deep end so she’d stay there. He weighted her down.”

Lena was silent again, but he knew she was too smart not to be thinking the same thing he was.

Will said it for her. “Someone wanted the body found. There was the call to 911.”

“Maybe one of Tommy’s neighbors saw something.”

“And followed him to the lake, watched him dump the body, and …”

“You think he had an accomplice?”

“What do you think?”

“I think at best we’ve got a material witness. We’ll need to talk to her at some point, but why does this matter when the guy who admitted to killing Allison is dead?”

Will looked around. They were standing in mud up to their ankles. The earth was darker here, turning almost black as it dipped into the water. Allison’s shoes had black mud on them, not red clay.

Will asked, “Did Tommy mention whether or not Allison had a boyfriend?”

“Don’t you think we’d be talking to him right now if he had?”

Will saw a fat squirrel scamper up a tree, tail twitching. Several twigs had been snapped in two. The ground covering was bent down. He heard a car in the distance. “Is there a road close by?”

“About a mile out.” She pointed in the direction of the noise. “There’s a divided highway.”

“Any residences?”

Lena pressed her lips together. She wouldn’t look at him.

“Detective?”

She stared down at the ground, knocked some mud off her shoe. “Tommy lived out that way.”

“So did Allison Spooner.” Will glanced back at the lake. The water was churning. The wind coming off the water was like ice against his skin. “Have you ever heard the name Julie Smith?”

Lena shook her head. “Who is she?”

“Did Tommy mention any friends? Either his or Allison’s?”

“That wasn’t the focus of the interview.” Her tone was terse. “I was trying to get him to confess to murder, not give me his life story.”

Will kept his eyes on the lake. He was looking at this the wrong way. Their killer was smart. He knew that water would get rid of trace evidence. He knew to walk the body into the deeper part of the lake. He had probably lured Allison out here after careful deliberation. The wet terrain, the mud and underbrush, all would serve to help cover his tracks.

Will rolled up the legs of his jeans. His shoes were already soaked, so he didn’t bother to take them off before walking into the lake. The cold water sloshed into his sneakers.

“What are you doing?”

He went out a few feet and scanned the shoreline, studying the trees, the underbrush.

Lena had her hands on her hips. “Are you crazy? You’re going to get hypothermia.”

Will studied each tree, each branch, each section of weeds and moss. His feet were completely numb by the time he found what he was looking for. He walked toward a large oak that was leaning away from the shore. Its knotty roots coiled into the lake like an open fist. At first, Will had thought he was seeing a shadow on the bark, but then he remembered you had to actually have sun or some other source of light to cast a shadow.

Will stood in front of the tree, his shoes sinking into the silt at the bottom of the water. The tree was deciduous, its bony canopy reaching up at least a hundred feet overhead. The trunk was about three feet around and bowed away from the water. Will wasn’t an arborist, but there were enough oaks around Atlanta so that he knew their red-brown furrows of bark turned the color of charcoal as the tree aged. The scaly bark had absorbed the rain like a sponge, but there was something else Will had noticed from his vantage point in the water. He scraped at a small section of bark with his fingernails. The wood left a wet, rust-colored residue. He rolled the grit between his fingers, squeezing out the moisture.

Blood really was thicker than water.

“What is it?” Lena asked. She kept her hands in her pockets as she leaned out into the water.

Will remembered the flashlight in his jacket pocket. “Look.” He traced the light along a dark stain that sprayed up the trunk. He thought about what Sara had said about Allison’s injury, that there would be a high-velocity spray, like a hose turned on full blast. Four to five pints of blood. That was over half a gallon.

Will said, “She must have been facedown on the ground, just shy of the water. Her blood spattered up and back in an arc. You can see the dispersement is thicker here at the base of the tree, closer to her neck. Then it starts to dissipate at the top.”

“That’s not—” Lena stopped. She saw it now. He could see from her shocked expression.

Will glanced up at the sky. The clouds were letting loose a few drops at a time. They hadn’t been given much of a reprieve. It didn’t matter. Short of scrubbing the bark, there was no way to completely clean the tree. The wood had absorbed the mark of death the same way it would absorb smoke from a fire.

Will asked, “You still think our murderer is a nineteen-year-old boy who lives with his father?”

The wind whipped off the lake as Lena stared at the tree. Tears came into her eyes. Her voice shook. “He confessed.”

Will quoted Tommy’s words back to her. “‘I got mad. I had a knife on me. I stabbed her once in the neck.’” He asked, “Did you find blood in the garage?”

“Yes.” She wiped her eyes with the heel of her hand. “He was cleaning it up when we got there. I saw a bucket, and there was …” Her voice trailed off. “There was blood on the floor. I saw it.”

Will rolled down the legs of his jeans. His shoes were sinking into the mud at the base of the tree. He saw there was a new color mixed in with the soil, a deep rust that soaked into the mesh on the toe of his sneaker.

Lena saw it, too. She fell to her knees. She stuck her fingers deep into the ground and grabbed a fistful of earth. The soil was soaked, but not just with rainwater. She let the dirt fall back to the ground. Her hand was dark red, streaked with Allison Spooner’s blood.

CHAPTER TEN

LENA PRESSED A WET PAPER TOWEL TO HER NECK. SHE WAS sitting with her back against the stall of the locker room toilet. A patrolman had tried to come in while she was dry-heaving. He’d left without saying a word.

She’d never had a strong stomach. Her uncle Hank used to say that Lena didn’t have the guts for the kind of life she was living. He wouldn’t have taken any pleasure in seeing that he was right.

“Oh, God,” she whispered, as close to a prayer as she’d come in a long while. What had that stupid kid gotten himself into? What else had she missed?

She closed her eyes. Nothing made sense right now. Nothing was fitting together the same way it had yesterday morning.

He did it. Lena knew Tommy had killed Allison. People didn’t confess to murder unless they were guilty. Even without that, less than fifteen minutes after they pulled the girl out of the lake, they had found Tommy in Allison’s apartment going through her things. Wearing a black ski mask. He ran when they confronted him. He stabbed Brad, even if it was with a letter opener. Lena had seen him stab Brad with her own eyes. She had listened to Tommy’s confession. She had watched him write down everything in his own stupid words. And he had killed himself. The guilt had gotten to him and he had sliced open his wrists because he knew what he had done to Allison was wrong.