When the old keeper forgot one latch, the 400-pound silverback reached through the steel

red safety pin, and called clear to Miguel Reyes, who stood ten feet behind him with the morning chart. Then Tom looked down at the two levers as if someone had changed their order while he was blinking.

He touched the first lever. Stopped. Touched the second.

Across the steel mesh, Winston lifted his head from a pile of willow branches.