"Four months after the explosion at the Garden, a place where young women known as the Butterflies were kept captive, FBI agents Brandon Eddison, Victor Hanoverian, and Mercedes Ramirez are still entrenched in the aftermath, helping survivors in the process of adjusting to life on the outside. With winter coming to an end, the Butterflies have longer, warmer days of healing ahead. But for the agents, the impending thaw means one gruesome thing: a...