'When her older brother goes to school, Ruby is lonely. Until along comes Milo, Ruby's imaginary friend. He goes everywhere with her and they do everything together. When Ruby goes to kindergarden, Milo comes along too. At the school they meet Jacinta, who also has an invisible friend. He is a bear and his name is Boris. Ruby and Jacinta become fast friends and one day it is time for Milo and Boris to go home. But they promise to come back whenever the girls need them.' (Provided by publisher).
