Tally is about to turn sixteen, and she can't wait. In Tally's world, your sixteenth birthday brings an operation that turns you from a repellent ugly into a stunningly attractive pretty and catapults you into a high-tech paradise where your only job is to have a really great time. But Tally's new friend Shay isn't sure she wants to be pretty. When Shay runs away, authorities offer Tally the worst choice she can imagine: find her friend and turn her...

As they celebrate the opening of their underground nightclub, the Zeroes, six teenagers with unique abilities, learn about the sinister power of Swarm, who uses a crowd's rage to kill--and who loves killing Zeroes.

In alternating chapters, eighteen-year-old Darcy Patel navigates the New York City publishing world and Lizzie, the heroine of Darcey's novel, slips into the the "Afterwolrd" to survive a terrorist attack and becomes a spirit guide, as both face many challenges and both fall in love.

Continues the story of Austrian Prince Alek who, in an alternate 1914 Europe, eludes the Germans by traveling in the Leviathan to Constantinople, where he faces a whole new kind of genetically engineered warships.

The Zeroes are scattered, on the run, and desperate when challenges from within and from the world around them guarantee an epic showdown.

In an alternate 1914 Europe, fifteen-year-old Austrian Prince Alek, on the run from the Clanker Powers who are attempting to take over the globe using mechanical machinery, forms an uneasy alliance with Deryn who, disguised as a boy to join the British Air Service, is learning to fly genetically-engineered beasts.

In a world that is rapidly descending into chaos, Frey and Rafi are twin sisters, but few people know of Frey's existence, because she has been raised to be her sister's body double and lethal bodyguard, while Rafi has been raised to further the family's political power--but when their father sends Frey in her sister's place as collateral in a tricky deal, Col, the son of a rival leader, gets close enough to begin to suspect something, and Frey must...

Alek and Deryn encounter obstacles on the last leg of their round-the-world quest to end World War I, reclaim Alek's throne as prince of Austria, and finally fall in love.

"When the world sees Frey, they think they see her twin sister Rafi. Frey was raised to be Rafi's double, and now she's taken on the role . . . without anyone else knowing. Her goal? To destroy the forces that created her. But with the world watching and a rebellion rising, Frey is forced into a detour. Suddenly she is stranded on her own in Paz, a city where many of the citizens attempt to regulate their emotions through an interface on their arms....

Upon moving to Bixby, Oklahoma, fifteen-year-old Jessica Day learns that she is one of a group of people who have special abilities that help them fight ancient creatures living in an hour hidden at midnight; creatures that seem determined to destroy Jess.