At bedtime, the little gorilla cleverly grabs the zookeeper"s keys and frees a parade of animals to follow the keeper home to bed. The zookeeper"s wife returns them all - or does she? Good Night, Gorilla is designed in a sturdy format that"s perfect for even the youngest readers. Publisher: G. P. Putnam"s Sons. Genre: children"s fiction. Spread count: 17. Published date: 1994. Dimensions: 5"H x 6.5"W.