Stevie put the slide with the photos of the four victims back up on the screen, so that Patty would have to look at them.

“You had to be protected. So the next day you returned to camp, and suddenly everything was fine with Greg—so fine that you were busted getting busy with him and put on house arrest. This ensured you had an ironclad alibi. Some details of the Woodsman murders had been in the paper. This was perfect. There was no internet then—if Arnold wanted to get the details, he would have needed to get a copy of the newspaper articles. So it’s not that surprising that Sabrina ran into him on July 5, when she was on her way out of the library and he was going in. That encounter sealed her fate.”

Stevie waved a stray bug that had gotten inside the Bounce House away from her face. She had been talking for a long time and her body was starting to ache. She wanted to flop down in a beanbag and rest for a while, but the story was not finished. It was time to open the box in the woods, time to ruin the surprise.

“On the night of the Box in the Woods murders,” she continued, “your father went into the woods. He went to the spot you told him to go to. He’d been a Nazi intelligence officer. He’d faked his identity for thirty-three years. Cornering four stoned teenagers in the woods was probably not a big deal. The evidence suggests what happened there. Todd and Diane were probably off by themselves in a sleeping bag. They had no defensive wounds, so they likely never saw him coming. They were killed where they were and taken away in the sleeping bag. Sabrina and Eric were each attacked in a different way. Sabrina fought—there were wounds on her hands. Eric had been struck on the head but managed to run away. That must have been a scare, because if Eric got away, the whole thing would be over. But your father caught him and killed him at the border of the camp. The scene was made to look like one of the Woodsman’s crimes, and the job was done. Except . . .”

Stevie brought up a photo of Greg.

“. . . Sabrina wasn’t the only one in that cabana. Greg was there too. This wasn’t a problem that could be partially solved. They all had to go. What did you say when your father told you your boyfriend had to die? Were you sad, or were you glad to get him back for cheating?”

Patty put her head down, and Stevie knew she had hit the bull’s-eye with this one.

“I was in the hospital last night, after you chased us through the woods with a gun. You ran Nate and me off Point 23, which is why my arm’s in this. . . .”

She held up her cast.

“I was kind of out of it last night. I kept trying to sleep, but there was this reflection of a flashing light that kept me up. It was really distracting. It got me thinking again about something you told me, Susan. What did you tell me you saw that night at the football field when all the students gathered?”