A rock from the path had found its way onto the carefully trimmed lawn. Andrew stopped, bent at the waist and extracted the nuisance with two fingers. The rock was unceremoniously tossed toward the middle of the sloping driveway. A few more steps and he repeated the process. A rock clattered across the gravel toward the gate. Had he seen something else move there by the bars? Something large enough to be someone? He bent again. He chose a pice of gravel about the size of a grape from the path and took aim at where he thought he'd seen something. Then he threw it, hard.