SIGNED FIRST EDITION!!! "The One and Only Ruby" is a children's book by Katherine Applegate, focusing on the story of Ruby, a young elephant who appeared in "The One and Only Ivan," where she now lives in a sanctuary, recounting her past life in Africa and the challenges she faced, while grappling with her growing tusks and the memories of her traumatic experiences, all while finding comfort and support from her friends Ivan the gorilla and Bob the dog.