At his research clinic in Boston, renowned specialist Jake Foster uncovers the terrifying secret behind the city's rapidly rising infertility rate. Meanwhile in a nearby ER, his wife, Dr. Brett Foster, unsuccessfully tries to save a young man with no visible injuries from bleeding to death -- the fifth such fatality in a week. Working together to find answers, Jake and Brett discover that the two epidemics stem from the same diabolical source. And now they will risk everything to expose a sinister plot that could claim thousands of lives ... starting with their own.

*A brand-new book from bestselling author of the Legend series, Marie Lu!* The most famous person in the world is going undercover . . . Global phenomenon Winter Young is the pop star of a generation. With sell-out tours and smash-hit records, everyone wants him, or wants to be him. That's why a top-secret government organisation think he'll make the perfect spy. His target is infamous business tycoon, and all-round bad guy, Eli Morrison. Because Morrison's daughter has just one birthday wish: a private concert with Winter Young. Winter must use his stardom to crack his target's inner circle and bring Morrison down. With him will be expert spy, and expert bad-ass, Sydney Cossette - and she's convinced Winter doesn't have what it takes. But as the stakes get higher and the tension ramps up, Sydney and Winter might find their best chance is each other . . . Love, fame, and double-crossing infiltrate this thrilling book from the internationally bestselling author of the Legend series, Marie Lu.