Henry turned as if to dart out of the room, then swung around and stared at them, a look of confusion passing over his freckled face, as if he had only now had cause to wonder why Will, Tessa, and Jem might be crouching together in a mostly disused storage room. "What are you three doing in here, anyway?"
Will tilted his head to the side and smiled at Henry. "Charades," he said. "Massive game.

Author: Cassandra Clare