From Wall Street Journal bestselling author Joe Hart.A mysterious worldwide epidemic reduces the birthrate of female infants from 50 percent to less than 1 percent. Medical science and governments around the world scramble in an effort to solve the problem, but twenty-five years later there is cure, and an entire generation grows up with a population of fewer than a thousand women.Zoey and some of the surviving young women are housed in a scientific research compound dedicated to determining the cause. For two decades, she s been isolated from her family, treated as a test subject, and locked away told only that the virus has wiped out the rest of the world s population.Captivity is the only life Zoey has ever kwn, and escaping her heavily armed captors is easy task, but she s determined to leave before she is subjected to the next round of tests a program that other woman has ever returned from. Even if she s successful, Zoey has idea what she ll encounter in the strange new world beyond the facility s walls. Winning her freedom will take brutality she never imagined she possessed, as well as all her strength and cunning but Zoey is ready for war.