Responding to a distress call on the distant planet of Achlys, Thea Sadik and her search-and-rescue crew are confronted by a zombie-like outbreak that forces them to uncover a monstrous enemy.

The bad guys are out to save the world, but to do so, they must borrow a rocket, deal with nastiness inside a space suit, and handle some noxious gas.

When six kids from around the globe are chosen for a mission to Mars, people protest that Miranda was only selected because she's American, and when the training base is attacked, it is up to her to save herself and her friends.

Geronimo Stiltonix takes MouseStar 1's broken computer to a distant planet to be repaired by a brilliant inventor, but pirate spacecats attack and steal the device, and the spacemice must retrieve it before the machine can be turned against them.

Geronimo and his crew explore the underwater planet of Aquarix, where they face fur-eating seaweed, ferocious piranha aliens, and pirate spacecats.

Emmett accepts an interstellar space contract but learns en route that to win the promised fortune he and nine other recruits face a brutal competition, putting their very humanity at risk.

With the help of Star, Narwhal, who is now a Narwhalicorn, and Jelly embark on an out-of-this-world adventure to a planet filled with unicorns, but when Jelly wishes he were back home, Narwhal must find a way to cheer him up.

"In 2199, 17-year-old Jessica Mathers wakes up on a desolate, post-extinction planet 14 light years from Earth and must make sense of the bloody destruction around her, as well as the questionable intentions of a familiar stranger"--

Traveling to the planet Jurassix to warn its inhabitants of an imminent comet strike, Geronimo Stilton and his crew encounter ferocious, dinosaur-like beasts who have an appetite for rodents.

The planet Kerenza is attacked, and Kady and Ezra find themselves on a space fleet fleeing the enemy, while their ship's artificial intelligence system and a deadly plague may be the end of them all--