The comet, Cain, came from beyond our solar system, its debris containing elements unknown. Now, in the isolated region of Fairbanks, Alaska, the skies shift and stretch as an interstellar dust cloud seeds the atmosphere. When a plane shudders its way through pulpy, swirling, bruise-shaped clouds, lit with sudden cracks of lightning, the sky opens and the aircraft vanishes...but only for a minute. When the flight lands, everyone on board and in the...

The second book in the full-color illustrated sci-fi adventure series that keeps readers on the edge of their seats! Children from all over the world are trying to complete the game. Marie, the fourteen-year-old daughter of a wealthy arms manufacturer in Norway, uses unorthodox methods to win. But what is her prize? Marie is flown to Area 51 in Nevada, where she's recruited into a select group of children who are leaving earth to investigate and settle...

In the face of impossible odds, can one girl stem the tides of war? It has been six months since clockwork engineer Petra Wade destroyed an automaton designed for battle, narrowly escaping with her life. But her troubles are far from over.  Her partner on the project, Emmerich Goss, has been sent away to France, and his father, Julian, is still determined that a war machine will be built. Forced to create a new device, Petra subtly sabotages the...

From Nebula and Hugo Award–nominated Carolyn Ives Gilman comes Dark Orbit, a compelling novel featuring alien contact, mystery, and murder. Reports of a strange, new habitable planet have reached the Twenty Planets of human civilization. When a team of scientists is assembled to investigate this world, exoethnologist Sara Callicot is recruited to keep an eye on an unstable crewmate. Thora was once a member of the interplanetary elite, but since...

Once again, the Earth is under attack. An alien species is poised for a final assault. The survival of humanity depends on a military genius who can defeat the aliens. But who? Ender Wiggin is brilliant, ruthless, and cunning, a tactical and strategic master, and a child. Recruited for military training by the world government, Ender's childhood ends the moment he enters his new home: Battle School. How will Ender perform in real combat conditions?...

An unknown hacker with personal motives targets Asa and Riven costing them their latest job and turning everyone in Requiem against them, so the two enter a deadly trial for control of one of the city's crime sectors in order to protect their crew.

Spensa needs all the knowledge she gathered in the Nowhere to end the Superiority's quest for galactic dominance, but first she must determine how far she is willing to go for victory.

"Like most high school seniors, Alexandra Lucas is caught between living in the moment and an unknown future. Her anxiety disorder doesn't make that any easier. But she's coping—until her train stops on the way home from a concert with her boyfriend. At first, she's worried about breaking curfew. Then terror echoes through their train car. A mysterious doorway has appeared beside the tracks, and a hologram claiming to be a human from the future...

"While we live, the enemy shall fear us. Since she was born, Kyr has trained for the day she can avenge the murder of planet Earth. Raised in the bowels of Gaea Station alongside the last scraps of humanity, she readies herself to face the Wisdom, the powerful, reality-shaping weapon that gave the majoda their victory over humanity. They are what's left. They are what must survive. Kyr is one of the best warriors of her generation, the sword of a...

"Martin Just wakes up one morning after what feels like, and might actually be, a centuries-long sleep with two new innate pieces of knowledge: Humanity is a virus destined to destroy all existence. And he is the Cure. Martin begins slipping into an alternate consciousness, with new physical strengths, to violently defend his family--the only Black family in their neighborhood in the Hollywood Hills of Los Angeles--against pure evil"-- Martin, his...