Skippyjon Jones, the Siamese cat that thinks he is a Chihuahua dog, has an adventure on Mars.

Young wizards Kit Rodriguez and Nita Callahan manage to wangle their way onto an elite team sent to investigate the mysterious, long-sought "message in a bottle" that holds the first clues to the secrets of the ancient Martian race.

A small mouse and his best friend, a giant flying robot, attempt to save the Earth when an evil Martian monkey and his mechanical creations attack.

On the planet Mars, sixteen-year-old Durango and his crew of mercenaries are hired by the settlers of a mining community to protect their most valuable resource from a feral band of marauders.

After moving to Mars with his family, Davey complains of being bored until he begins exploring the planet with his dog Polaris and uncovers a most unusual "treasure."

Michael Prasad knows he shouldn't go out on the Mars surface alone. It's dangerous. His parents have forbidden it. And the anxiety he feels almost every time he puts on a spacesuit makes it nearly impossible for him to leave the safety of the colony. But when his best friend, Lilith, suggests they sneak out one night, he can't resist the chance to prove everyone--including himself--wrong. As the two ride along the Mars surface in a stolen rover, miles...

"When he takes a ride in a UFO to meet Janet, the head alien, Rappy must decide whether to live with her on Mars or return home." --

Pelly feels miserable because she looks different from her Martian classmates, but a glamorous opera singer who visits her class shows Pelly that her differences make her special.

As the school year begins on Mars, Horus the Martian gets off to a rocky start, but soon discovers that first grade is not really as bad as he thought.

It is Earth year 2213-but, of course, there is no Earth anymore. Not since it was burned to a cinder by the sun, which has mysteriously begun the process of going supernova. The human race has fled to Mars, but this was only a temporary solution while we have prepared for a second trip: a one-hundred-fifty-year journey to a distant star, our best guess at where we might find a new home. Liam Saunders-Chang is one of the last humans left on Mars. The...