Thirteen-year-old Mark Harrison has a week to hike across the desert. He will meet his parents on the other side. By his fourth day, he’s made good time. As he settles in for the night, he gazes up at the stars, feeling completely content.

Suddenly, a blue light streams from the sky, jolting Mark into another dimension. Now, in a land filled with strange jungle animals and primitive tribes, Mark desperately battles hunger, armed enemies, and superhuman powers.

To find the way back to his own world, Mark will need to find greater resources and strength—but time is running out.

Gary Paulsen has written dozens of books for young people. His tales of adventure and survival have won the enthusiastic praise of young adults across the country and many awards. In this imaginative story, Johnny Heller’s narration keeps you close by the resourceful young teenager’s side.