The Transall saga

While backpacking in the desert, thirteen-year-old Mark falls into a tube of blue light and is transported into a more primitive world, where he must use his knowledge and skills to survive.

Gary James Paulsen (May 17, 1939 – October 13, 2021) was an American writer of children's and young adult fiction, best known for coming of age stories about the wilderness. He was the author of more than 200 books and wrote more than 200 magazine articles and short stories, and several plays, all primarily for teenagers. He won the Margaret Edwards Award from the American Library Association in 1 …