While searching for her missing baby, a mother mouse comes upon a big, scary gorilla. She runs away, but the gorilla chases her, no matter where she runs.

"Priscilla is obsessed with gorillas. But when her ape-like behavior gets her sent to the Thinking Corner, Priscilla wonders if she is really channeling her inner gorilla, or just being a troublemaker"--

Little Gorilla's family and friends try to help him overcome his special growing pains.

This profoundly moving tale about a grieving boy and an imaginary gorilla makes real the power of talking about loss. On the day of his mother's funeral, a young boy conjures the very visitor he needs to see - a gorilla. Wise and gentle, the gorilla stays on to answer the heart-heavy questions the boy hesitates to ask his father: Where did his mother go? Will she come back home? Will we all die? Yet with the gorilla's friendship, the boy slowly begins...

Amelia must continually remind her gorilla friend, Nilson, not to have fits, especially when they are running errands with her mother, but sometimes Amelia stomps and growls, too.