Illus. in black-and-white. "With an entertaining blend of fact, farce, andfantasy, Osborne tells the story of Jack and his sister, Annie, who take a tripin a magic tree house and land in a time 65 million years ago. They finddinosaurs and volcanoes and adventure. Veteran storyteller Osborne builds thepower of reading into the story: it's the books in the tree house that give thekids the magic to travel and see far, far away."-- "Booklist."