At 13, they'd survived a living nightmare at the hands of two vicious home invaders. They've become living nightmares three years later, causing the largest manhunt in New York's history. Detective Iris Williams is the best detective that the N.Y.P.D. has to offer. But it will take all of her skills to bring down two of the most dangerous, elusive, and youngest serial killers she'd ever encountered, 16-year-old identical twin sisters, Stacey and Jannifer McHill, THE TWINS. For mature readers, the Twins will take you to the darkest corners of the human psyche.