Again his expression fluttered, like he was fighting some feeling that lingered at the back of his mind. “I didn’t have a choice. I knew she’d found those records. After you told me you’d seen them in the hospital, I had a feeling she’d go looking for them. That Monday she was acting weird when she got in from her volunteer shift—usually she at least said hi when she saw me out on the porch, but this time she wouldn’t even look at me. Just scurried into the house with her manila folder clutched in her hands. I called the hospital to ask if they could fax my records to a new shrink, and they told me then the records had gone missing.” He shrugged sadly. “She was going to ruin everything. So I spiked her water bottle with my mom’s Valium. Then it was just a matter of giving her a little push.”

A little push. I shuddered, imagining Nisha rolling slowly into the pool. Imagined her lungs filling with water. Imagined her opening her eyes and staring through the rippling blue at the figure standing overhead, watching her die.

“You two were going to ruin everything,” he said. His eyes narrowed, and he stared at Emma like she’d just said something wrong. She flinched at the sudden mood swing. “I had everything taken care of, but you had to keep digging.” He raised the knife high overhead, his teeth bared like a lion’s. Emma cringed, waiting to feel the blade on her flesh. But instead he drove it into the ground, giving a frustrated grunt. “You had nothing when you came here. I saw what was in your bag. One stuffed animal and some threadbare clothes? Oh, and the journal. Page after page after page of how sad you were, how much you wanted a family, how poor Emma Paxton was so alone. How you wanted a boyfriend.” Emma stared at him. Her heart shriveled in her chest, as if some disease were ravaging it to ash. Ethan’s eyes blazed. “I gave you everything you ever wanted. You should be thanking me!”

Emma kept her face very carefully still, holding back the tears and the pain that threatened to burst through at any moment. “You can’t kill me,” she whispered. “If you do they’ll know I didn’t kill Sutton. They’ll figure it out, and they’ll come find you. You need me. I’m your cover.”