“You weren’t going to hurt anybody, were you?”

“No, no, the ant-lion pit was just to scare you, to slow you up. I put an empty nest in there on purpose. The ammonia was to warn me if you got close. That’s what insects do. Smells’re, like, an early warning system or something for them.” His red, watery eyes shone with a curious admiration. “That was pretty cool, what you did, finding me at the mill. I, like, never thought you’d get there fast as you did.”

“And you left that fake evidence in the mill—the map and the sand—to lead us off.”

“Yeah, I told you—insects’re smart. They’ve gotta be.”

They finished uncovering the battered boat. It was painted dark gray, was about ten feet long and had a small outboard motor on it. Inside were a dozen plastic gallon bottles of spring water and a cooler. Sachs tore open one of the waters and drank a dozen mouthfuls. She handed the bottle to Garrett and he drank too. Then he opened the cooler. Inside were boxes of crackers and chips. He looked them over carefully to make sure everything was accounted for and undamaged. He nodded then climbed into the boat.

Sachs followed, sat with her back to the bow, facing him. He gave her a knowing grin, as if acknowledging that she didn’t trust him enough to turn her back on him, and pulled the starter rope. The engine sputtered to life. He pushed off from the shore and, like modern Huck Finns, they started down the river.

Sachs reflecting: This is knuckle time.

A phrase her father had used. The trim, balding man, a beat patrolman in Brooklyn and Manhattan most of his life, had had a serious talk with his daughter when she’d told him she wanted to give up modeling and get into police work. He’d been all for the decision but had said this about the profession: “Amie, you have to understand: sometimes it’s a rush, sometimes you get to make a difference, sometimes it’s boring. And sometimes, not too often, thank God, it’s knuckle time. Fist to fist. You’re all by your lonesome, with nobody to help you. And I don’t mean just against the perps. Sometimes it’ll be you against your boss. Sometimes against their bosses. Could be you against your buddies too. You gonna be a cop, you got to be ready to go it alone. There’s no getting around it.”

“I can handle it, Pop.”

“That’s my girl. Let’s go for a drive, honey.”

Sitting in this rickety boat, being piloted by a troubled young man, Sachs had never felt so alone in her life.

Knuckle time …fist to fist.