"A Tom Doherty Associates book."

In order to thwart the Mogadorian invasion, a group of the Garde head to a pyramid in Mexico in order to awaken a power that can save the world.

"When Rosemary Harper joins the crew of the Wayfarer, she isn't expecting much. The patched-up ship has seen better days, but it offers her everything she could possible want: a spot to call home, a chance to explore the far-off corners of the galaxy and some distance from her past. And nothing could be further from what she's known than the crew of the Wayfarer."--Page [4] of cover. Rosemary Harper doesn't expect much when she joins the crew of...

Scarlet Benoit and Wolf, a street fighter who may have information about her missing grandmother, join forces with Cinder as they try to stay one step ahead of the vicious Lunar Queen Levana.

Lovelace was once merely a ships artificial intelligence. When she wakes up in a new body, following a total system shut-down and reboot, she has no memory of what came before. As Lovelace learns to negotiate the universe and discover who she is, she makes friends with Pepper, an excitable engineer, who is determined to help her learn and grow.Together, Pepper and Lovey will discover that no matter how vast space is, two people can fill it together.The...

Orphaned at age five, Lucinda, now fifteen, stands with courage against the man who took everything from her, aided by a thief, a clever goat, and a mysterious woman called the Witch of Amaranth, while the prince she knew as a child prepares to marry, unaware that he, too, is in danger.

As Naomi and her fellow teen astronauts investigate the fate of their predecessors on the Europa colony, back on a deteriorating Earth, Leo works with a renegade scientist to warn the crew about hostile extraterrestrials.

We are not alone. The alien protomolecule is clear evidence of an intelligence beyond human reckoning. No one knows what exactly is being built on Venus, but whatever it is, it is vast, powerful, and terrifying. When a creature of unknown origin and seemingly impossible physiology attacks soldiers on Ganymede, the fragile balance of power in the Solar System shatters. Now, the race is on to discover if the protomolecule has escaped Venus, or if someone...

Zack, his father, and Spencer fight to save the world from a rude, bossy, and hungry package of freeze-dried spores purchased at The Orville and Fanny Shlectwasser Museum of Air and Space.

In the quiet town of Hamelin, twelve-year-old twins Tommy and Gerta ask a local scientist to help remove visiting space aliens who appear kind and helpful but may be planning something evil. Includes a classic retelling of the Pied Piper folktale, visual questions, and a glossary.