None of them moved then. The dog was mean-looking, white with a big black spot around one beady eye and over the small ear. The dog moved forward. The kids moved backward.

“He’s protecting her,” Tommy said.

“Maybe he killed her,” Dennis said. “Maybe he killed her and buried her like a bone, and now he’s back to eat the body.”

He said it as if he hoped that was the case, and he couldn’t wait to watch the next gruesome scene.

Then as suddenly as it had appeared, the dog stepped back into the bushes and was gone.

In the next second, a man in a sheriff’s deputy’s uniform appeared at the top of the bank the kids had tumbled over. He looked like a giant looking down at them, his hair buzzed flat on top, his eyes hidden by mirrored sunglasses. He was Dennis Farman’s father.

Tommy stood well back from the deputies who had come with yellow crime-scene tape to mark off the area around the shallow grave. He should have been home by now. His mother was going to be really mad. He had a piano lesson at five. But he couldn’t seem to make himself leave, and he thought maybe he wasn’t supposed to.

The light was fading in the thick woods. Somewhere out there was a mad dog, and maybe even a murderer. He didn’t want to walk home anymore.

The adults on the other side of the tape weren’t paying any attention to him or Wendy. Dennis hung around just outside the tape, trying to get a better look as the deputies did their jobs.

Cody Roache had run all the way back to the street and nearly got himself run over by Dennis’s father in his squad car. Tommy had heard the deputies telling each other. Mr. Farman had come straight to the scene, but Cody had not come back.

“I wonder who she is,” Wendy said quietly. She sat on the stump of a tree that had been cut down over the summer. “I wonder how she died.”

“Somebody killed her,” Tommy said.

“I think I want to go home now,” Wendy said. “Don’t you?”

Tommy didn’t answer her. He felt like he was inside of a bubble, and if he tried to move the bubble would burst and all sorts of feelings would wash over him and drown him.

People had come into the park to see what was going on. They stood up on the bank—teenagers, a mailman, one of the janitors from school.

As he watched them, Miss Navarre appeared at the edge of the group. She spotted him and Wendy right away and made her way down to them.

“Are you guys all right?” she asked.

“Tommy fell on a dead person!” Wendy said.