Caught by the guards, Zak and his alien friend, Erro, are taken to the Pit, one of prison Planet Alcatraz's most escape-proof features, where every movement causes the Pit to descend deeper--and somehow the two teenagers will have to figure out a way to climb the walls and escape.

After stowing away on a spacecraft, Zak and his alien friend, Erro, did not expect to end up on the prison planet called Alcatraz, but here they are; their latest plan to escape involves stowing away on another spacecraft--unfortunately this one is only going to Alcatraz's nearby metallic moon, a prison just as deadly as Alcatraz itself.

Captured by the sadistic guards of the prison planet Alcatraz, the two teenage friends, Zak, and the alien Erro, are placed in bottomless cages hovering over a sea of poison acid and if they fall asleep or lose their grip they will fall to their deaths--and Zak will need all of his ingenuity if he is going to figure out a way to save himself and his friend.

Nobody on the spaceship Wanderer has ever seen Earth, but now they have found a habitable planet, and they are eager to start building their new homes; the trouble is that nearly twelve-year-old Evie is sure that the planet is inhabited by ghostly aliens and aggressive plants, only no one wants to believe her, especially not her planet-obsessed twin brother Emery--and after the twins are attacked by both plants and aliens, Evie is not sure that her...