"In a world where disease has been eliminated, the only way to die is to be randomly killed ('gleaned') by professional reapers ('scythes'). Two teens must compete with each other to become a scythe--a position neither of them wants. The one who becomes a scythe must kill the one who doesn't"--

Traveling to Antarctica for a prestigious science competition, twelve-year-old Jack and his genius foster siblings, Ava and Matt, become caught up in a mystery involving a missing scientist.

"Three friends find themselves plunged into a world of quantum physics, a rare disease that only affects identical twins, and a mysterious fact about a real-life global catastrophe"-- Zak is standing on the subway platform when the tunnel starts to fill with water. He sees it before anyone else; a voice only he hears warns him to run. His friends Moira and Khalid believe this is more than a premonition, and soon all three find themselves in an alternate...

Eighteen-year-old Alexandra Lucas braves her anxiety and jumps through a vertex to the year 2359 where she joins forces with the Umbra, a secret organization, to warn people that the holograms are lying and that Earth still exists, but she is soon bewildered by the lack of outrage conveyed by some people when they learn the truth.

When field scientist Lucy defies the law of her safe but authoritarian home on an oasis by leading a team of researchers into the desert to learn about the greater world, what she finds will change everything, beginning with the knowledge that beetles are not the only living creatures.

Discovering a mysterious bracelet after moving to Arizona, Charlie Wilde finds that she has developed superhuman abilities and speed and teams up with new friends to discover what is happening to her and how to control her powers.