Two Graves

Two Graves is a thriller novel by Douglas Preston and Lincoln Child. It was released on December 11, 2012 by Grand Central Publishing. This is the twelfth book in the Special Agent Pendergast series and also the third novel in the Helen trilogy. The preceding novel is Cold Vengeance.

Plot
Pendergast's bloodlust continues as he chases those responsible for the abduction of Helen, who was revealed to have been alive and well for the past twelve years at the climax of Cold Vengeance. But a new threat intrudes upon Pendergast's chase: a serial killer who holds New York City in the grip of terror.

Reception
"Preston and Child’s high-adrenaline 12th thriller featuring maverick FBI agent Aloysius Pendergast wraps up the trilogy that began with 2010’s Fever Dream and continued with 2011’s Cold Vengeance with a bang. Just as Pendergast is reunited one evening in Manhattan’s Central Park with his beloved wife, Helen, who he thought died 12 years earlier, Helen falls victim to a gang of well-organized kidnappers. Despite Pendergast’s impressive combination of brains and brawn as well as network of helpers, his efforts to rescue Helen don’t play out as he anticipated. Meanwhile, a serial murderer dubbed the Hotel Killer has been targeting guests of Manhattan hotels, mutilating his victims and leaving behind a piece of his own body (e.g., a finger, an ear lobe) to taunt the NYPD. Given the growing cast of characters and their complex backstories, those already familiar with the bestselling authors’ fictional world will most enjoy this intelligent suspense novel. Agent: Eric Simonoff, WME. (Dec.)"

—Review by Publishers Weekly