On Internment, the floating island in the clouds where 16-year-old Morgan Stockhour lives, getting too close to the edge can lead to madness. Even though Morgan's older brother, Lex, was a Jumper, Morgan vows never to end up like him. She tries her best not to mind that her life is orderly and boring, and if she ever wonders about the ground, and why it is forbidden, she takes solace in best fr...