A strange enigma is discovered on the moon. The discovery has great implications and men are sent out deep into the solar system. But things begin to go horribly wrong ... Arthur C. Clarke collabor…
You haven't seen strange until you've seen what Brian and Gregory are up against....rnSomething incredibly strange is happening. It's not The Game of Sunken Places-Brian and Gregory have been throu…
When Hex discovers that his long-lost father is happily living on Planet Earth, he can't believe his luck. He decides to give up space invading for good and join his dad. The only problem is, Hex c…
Time-travelers Jonah and Katherine are summoned to help another missing child from history, this time Virginia Dare from the Roanoke Colony, but their journey is sabotaged and goes dangerously awry…
As a world-ending war surges to life around them, Todd and Viola face monstrous decisions, questioning all they have ever known as they try to step back from the darkness and find the best way to a…
Cloud Atlas meets Orphan Black in this epic dimension-bending trilogy by New York Times bestselling author Claudia Gray about a girl who must chase her father's killer through multiple dimensions.r…
Ever wondered how old the earth is, or how many galaxies there are in the universe? These questions and many more are answered in this fascinating series. Each book comes complete with a fully inte…
Marguerite Caine has done the impossible, traveling to alternate dimensions with the Firebird - the brilliant invention of her parents, her boyfriend, Paul, and their friend Theo. But she has also …
From the moment Horace F. Andrews sees the sign from the bus—a sign with his own name on it—everything changes. The sighting leads him underground, to the House of Answers, a hidden warehouse f…
Tolly's great-grandmother wasn't a witch, but both she and her old house, Green Knowe, were full of a very special kind of magic. And Green Knowe turned out not to be the lonely place Tolly had ima…