“You were alone here while the girls were out back and I was out looking for a signal.” Shane’s voice is hoarse. “You’re the only one who had a chance to do this. It was you.”

He makes an excellent point. Tim is the only one who had the opportunity. But it couldn’t have been him. Not Tim. Never. I’d sooner believe that I killed Kayla myself.

“Why would I do this?” Tim shoots back.

“I don’t know. Because you’re crazy?” Shane says. “Maybe she rejected you and you got angry.”

“This is ridiculous!” Tim’s eyes bulge. “You were alone outside for all that time. Maybe you’re the one who did this! You went in through the window and stabbed her while we were all downstairs.”

“Come on—this is the second floor. Who am I—Spider-Man?”

Another excellent point.

Tim takes a step toward Shane, raising the bat in the air. “I don’t know how the hell you did it. Maybe you had a ladder—I don’t know. But it wasn’t me, and it wasn’t Chelsea or Brooke. So it had to have been you.”

“Watch it, Reese.” There’s a menacing edge to Shane’s voice. “You better not be thinking about swinging that thing at me.”

“I will if you give me a reason to.”

My heart is jack-hammering in my chest. I look back at Chelsea, who has scrambled back to her feet. We exchange looks in the darkness. I don’t know what’s about to happen, but it’s something bad. I try to figure out what I could say to make this right, but it’s gone too far.

“Brooke.” Tim’s voice breaks into my thoughts. “You believe me, don’t you? I wouldn’t hurt anyone. Shane… He must have done this.”

Shane swivels his head in my direction. “Brooke, you can’t seriously think I would kill somebody. Tim was the one in the house!”

I open my mouth, even though I’m not sure what I’m going to say. But before I say the wrong thing, a hand grips my arm. It’s Chelsea.

“You can both go to hell!” she spits at them. “Come on, Brooke.”

I allow Chelsea to drag me out of the room while Shane and Tim stare at us. She pulls me over to Shane’s bedroom, and she slams the door shut behind us. She leans her weight against it for a moment, breathing hard.

“I don’t know who killed her.” She’s blinking back tears. “But it was definitely one of them. We’ve got to stay in here until somebody comes for us. Help me barricade the door.”