"Twelve-year-old Christopher Nichols and his family live on a new planet, Perses, as colonists of Melming Mining's Great Mission to save the earth. When Landers, as the attackers are called, obliterate the colony to steal the metal and raw ore, Christopher and a small group of survivors are forced into the maze of mining tunnels below the surface of Perses"--

"Two young settlers on a pioneer planet seek to stop a war and to save the intelligent alien treecats from exploitation by unscrupulous humans"--

"Dashiell Gibson, who lives on Moon Base Alpha, has to solve a murder of one of the moon's most prominent doctors"--Provided by publisher.

"A teenage boy leaves for Mars as a colonist with the Mars One space program and grapples with what he's leaving behind to do so"--

Nax and a handful of other space Academy washouts are the only surviving pilots after the school is hijacked by terrorists, but in order to spread the truth about the attack, Nax and his fellow failures must execute a dangerous heist.--

In an effort to find out why accidents are plaguing Sphinx's younger inhabitants, fifteen-year-old Stephanie Harrington attempts things she never imaged doing--including going undercover into the wilds of the late-night club scene, a realm where her faithful treecat guardian, Lionheart, cannot follow.

"The young survivors on the mining asteroid of Perses have come up against what they mistakenly thought was their rescue. Now they must find a way to return home to Earth and share the truth about what happened with their battle against Major Thatcher. Once again Christopher has to make some tough choices as cracks begin to appear in their group and they are unsure of what has happened to Earth in the meantime and what kind of home they might return...

Benny Love's trip to the moon was supposed to be two weeks of driving out-of-this-world Space Runners and exploring the moon's surface. It wasn't supposed to include the start of a war between humans and the Alpha Maraudi, a group of aliens intent on destroying Earth. Stranded on the moon, Benny and his friends make contact with a peaceful Alpha Maraudi general. After getting to know the aliens, Benny can't imagine sitting by and letting the war continue....

Thirteen-year-old Rigg has a secret ability to see the paths of others' pasts, but revelations after his father's death set him on a dangerous quest that brings new threats from those who would either control his destiny or kill him.

Bell has spent his whole life--all eleven years of it--on Mars. But he's still just a regular kid--he loves cats, any kind of cake, and is curious about the secrets the adults in the US colony are keeping. Like, why don't they have contact with anyone on the other Mars colonies? Why are they so isolated? When a virus breaks out and the grown-ups all fall ill, Bell and the other children are the only ones who can help. It's up to Bell--a regular kid...