Westerfeld, Scott

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 decide whether to deal with him violently or finally assume her own identity.

When Tally was ugly she promised her friends on the outside to be their guinea pig, yet now that she's pretty and she gets their message, she isn't sure she's willing to give up the life she's been enjoying.

"After the shocking conclusion to Swarm, the Zeroes are scattered, on the run, and desperate. They're up against challenges from within and from the world around them, and one thing is certain--an epic showdown is guaranteed"--Provided by publisher.

"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. Paz is an easy place to get lost . . . and also an easy place to lose yourself. As the city comes under a catastrophic attack, Frey must leave the shadows and enter the chaos of warfare--because there is no other way for her to find her missing sister and have her revenge against her murderous father"--Amazon.com.

Addison got close enough to the Spill Zone to touch it, literally. She survived the encounter, but came back changed. It turns out she's not alone. North Korea has its own Spill Zone, and a young man named Don Jae is the only one who made it out alive. Alive, but changed. Now Addison, Don Jae, and, curiously, a rag doll named Vespertine, share an unholy bond and uncanny powers.

In an alternative civilization where the social status of each person is monitored and rated and anyone can drop from celebrity to nobody, fifteen-year-old Aya Fuse's popularity ranking is so low her only chance of moving up is to find a good story, so when she meets a group of girls who hide an explosive secret, Aya decides to expose the group and unknowingly puts her own life in danger.

Tally is faced with a difficult choice when her new friend Shay decides to risk life on the outside rather than submit to the forced operation that turns sixteen year old girls into gorgeous beauties, and realizes that there is a whole new side to the pretty world that she doesn't like.