by Reed Graf (Author), Jayden Ellsworth (Illustrator) Welcome Aboard! Klaus and the gang go on a cruise and discover that Georgia's little brother, Fitty, has joined them by stowing away in her suitcase. He is welcomed with open arms, and Grandpa's ever-expanding mouse family celebrate their newest and smallest member. Number of Pages: 40 Dimensions: 0.25 x 8.5 x 8.5 IN Illustrated: Yes Publication Date: February 19, 2020