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. Delighted to start first grade, Horus is dismayed to discover that there are no slime tables, no nap mats, and no snacks, and after being put in the Beta reading group instead of the Alpha, Horus longs to be back in Martiangarten.

When it is "Backward Day," Judy must turn her usual sour mood upside down and be happy and nice for a change.

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.

Overnight mysterious holes appear in the yards of Shaker Street and the Makers (Michael, his cousin Liv, and their friend Leo) set out to solve the mystery--Liv is sure it is Martians, but Michael suspects the woman with a shovel that he saw last night with his homemade telescope.

Stranded on the moon after his extraordinary airplane takes him into outer space, a boy meets a marooned young Martian with a broken spacecraft, and the two new friends work together to return to their respective homes.

When Nergal's first-grade class concentrates on health and fitness during Martian Health Week, he is very nervous about doing poorly in the upcoming space race.

Although she is smart, Tera must learn the importance of working together on a group project. Tera is a star student. So when Pod 1 is assigned a group project to build the solar system, Tera is sure she has all the answers. But with her overzealous nature and her know-it-all ways, Tera ruffles a few tentacles. Why does being right sometimes feel so wrong? Shana Corey and Mark Teague are stars who know the meaning of teamwork. Together they have created...

As life on Mars becomes impossible, Martians and their terrifying machines invade the earth.

"Blast off and find out if you could handle life on Mars. Along the way, you'll get to know the red planet, high-tech rovers, and amazing scientific discoveries. So sit back, enjoy the ride, and get ready to learn all about Mars and what it will take to get there!"--Page 4 of cover. An introduction to the planet Mars for young readers, featuring up-to-date facts and all the latest discoveries on a wide variety of topics including extreme weather,...

As an intergalactic battle between two alien planets, Xion and Meigwor, causes trouble in outer space, Peri and his half-Martian best friend Diesel, find themselves caught in the middle. The Meigwors are acting seriously weird and making outrageous demands! When the war puts Peri and Diesel's friend Selene in danger, though, they'll have to think quickly if they want to save her and the universe.