SUMMARY:  A serial killer the cops thought was long gone.A good detective racing the clock to stop the murders.A chilling and twisty thriller that will leave readers gasping. A major spike in gang homicides has Boston on edge, leaving a growing body count of bangers in its wake and the city’s police and DA’s office scrambling to catch up. Even the mayor’s Street Saviors taskforce of ex-cons, devoted to steering kids out of the thug life, are working overtime to stop the bloodshed. But who will stop the even greater threat that’s about to descend when a murderous psychopath steps out of the past?Memories of the infamous Blood Bath Killer still loom large, especially for homicide detective Angel Alves, who helped bring down the multiple-murderer whose rampage shocked the city. So when a pair of students turn up bizarrely slain, Alves fears that another serial killer is stalking Boston. A fear that becomes fact when his ex-partner, Wayne Mooney, recognizes the murders as the work of the Prom Night Killer—whose unsolved crimes have haunted Mooney for a decade. Now, with hands-on assistant DA Conrad Darget backing them, Alves and Mooney set out to stop grim history from repeating itself. But matching wits with a twisted mind is a dangerous game. Especially when there are no rules—and your allies really may be your enemies. Mixing edgy psychological suspense, hard-boiled realism, and staccato bursts of pulse-quickening action, 2 in the Hat makes another slam-dunk winning case for Raffi Yessayan, hailed by Robin Moore, author of The French Connection, as “the best prosecutor-turned-crime-writer to hit the streets since George V. Higgins and Scott Turow.”