The first book of the series Lost in Parts. Will set of on an adventure, when he doesn't know that his parents, sister, and (maybe brother/uncle Don West) are searching for him. A lot of things happen when the crew enters one of the planets and they got lost. There is a new character (a pokemon!) starting at Chapter 7 - a Decidueye owned by Penny! Featuring ships: Penny Robinson x Don West Judy Robinson x John Robinson anyways the book cover is found in tumblr
7 parts