Tricia Bell

Loren Calla has only ever been ordinary. As a human struggling to survive in a city that caters to the needs of vampires, werewolves, witches, and other supernatural creatures, she always assumed her life would remain simple, predictable, and as safe as her world would allow. Until she barely escapes abduction at the hands of Darkslayers—supernatural bounty hunters that possess the Sight, a magical tracking ability that allows them to see a person's aura—and one of her friends is taken in her place. The abductors are demanding a ransom: Loren's life in exchange for her friend's safe return.

Dragons soar through the skies and protests erupt on the streets, but Vivien Featherswallow isn’t worried. She’s going to follow the rules, get a summer internship studying dragon languages, be smart, be sweet, and make sure her little sister never, ever has to risk growing up Third Class. She just has to free one dragon. By midnight, Viv has started a civil war. With her parents and cousin arrested and her sister missing, Viv is brought to Bletchley Park as a codebreaker—if she succeeds, she and her family can all go home again. If she doesn’t, they’ll all die.