After a harrowing, otherworldly confrontation on the shores of Exmouth, Massachusetts, Special Agent A.X.L. Pendergast is missing, presumed dead. Sick with grief, Pendergast's ward, Constance, retreats to her chambers beneath the family mansion at 891 Riverside Drive -- only to be taken captive by a shadowy figure from the past. Proctor, Pendergast's longtime bodyguard, springs to action, chasing Constance's kidnapper through cities, across oceans,...

When Grace Ozmian, the beautiful and reckless daughter of a wealthy tech billionaire, first goes missing, the NYPD assumes she has simply sped off on another wild adventure. Until the young woman's body is discovered in an abandoned warehouse in Queens, the head nowhere to be found. Lieutenant CDS Vincent D'Agosta quickly takes the lead. He knows his investigation will attract fierce scrutiny, so D'Agosta is delighted when FBI Special Agent A. X....

"Lucas Tappan, a wealthy and eccentric billionaire and founder of Icarus Space Systems, approaches the Santa Fe Archaeological Institute with an outlandish proposal--to finance a careful, scientific excavation of the Roswell Incident site, where a UFO is alleged to have crashed in 1947. A skeptical Nora Kelly, to her great annoyance, is tasked with the job. Nora's excavation immediately uncovers two murder victims buried at the site, faces and hands...

"In 2008, nine mountaineers failed to return from a winter backpacking trip in the New Mexico mountains. At their last campsite, searchers found a bizarre scene: something had appeared at the door of their tent so terrifying that it impelled them to slash their way out and flee barefoot to certain death in a blizzard. Despite a diligent search, only six bodies were found, three violently crushed and missing eyes and tongues. The case, given the code...

"Astoundingly, Constance has found a way back to the place of her origins, New York City in the late 1800s, leaping at the chance, although it means leaving the present forever. Constance sets off on a quest to prevent the events that lead to the deaths of her sister and brother. But along the road to redemption, Manhattan's most infamous serial killer, Dr. Enoch Leng, lies in wait, ready to strike at the slightest provocation. Meanwhile, in contemporary...