Krystal

The year is 2380, and the graduating cadets of Aurora Academy are being assigned their first missions. Star pupil Tyler Jones is ready to recruit the squad of his dreams, but his own boneheaded heroism sees him stuck with the dregs nobody else in the academy would touch....

When we last saw Squad 312, they working together seamlessly (aka, freaking out) as an intergalactic battle raged and an ancient superweapon threatened to obliterate Earth. Everything went horribly wrong, naturally.

Tensions are rising between the Quatrans and the Specters, and the Quatra Fleet is gearing up for an epic fight. With a galaxy on the brink of war and loyalties divided, the friendship of four cadets will be tested. Orelia has been arrested for espionage, and her future is looking bleak...until the Quatrans make her a surprising offer that could save her life - and the lives of everyone in the galaxy. Reeling from his breakup, Arran finds comfort in a sympathetic boy from Loos, someone who understands how hard it can be to fit in.

After the turmoil in the Arena, Gunnar retreats from Highcastle and attempts to maintain a low profile while the heat regarding Reborns subsides. Avoiding the human cities, he sets out to unexplored lands with guild mates and a potential new recruit. But when his Great Beast goes missing, a simple quest turns into a troubling chain of events that spawns several unanswered questions. Why is Sora unresponsive? And why are dragons threatening the inhabitants of Eden's Gate?

Hotshot pilot Vesper dreams of becoming a captain, but when she loses her spot to a wisecracking boy from the wrong side of the asteroid belt, she begins to question everything she thought she knew. Trapped on the toxic planet Deva, Cormak will take any chance he can to join the Academy—even if he has to steal someone's identity to get there. Arran was always an outcast on icy Chetire and is looking for a place to belong. He just never thought it would be in the arms of the hottest guy in the galaxy.

Centuries after nuclear war has destroyed our planet, humanity struggles to rebuild. It's been a month since the dropships landed and the rest of the Colonists joined the 100 on the ground. The teens, once branded juvenile delinquents, are now leaders among their people. But suddenly a new threat looms on the horizon - something neither Colonists or Earthborns have prepared for. In this thrilling fourth installment, Clarke, Bellamy, Wells, and Glass are pushed to the limits as they fight to protect their people...and to survive.