In the second installment of the New York Times bestselling series, detective of the supernatural R.F. Jackaby and his assistant Abigail Rook follow a case to a paleontological dig site in nearby Gad's Valley on the trail of a thief, a monster, and a murderer. In 1892, New Fiddleham, New England, things are never quite what they seem, especially when Abigail Rook and her eccentric employer, R. F. Jackaby, are called upon to investigate the supernatural....

Slither lurks in woods and towns, hunting for human blood, but before he can feast on three lovely sisters, their dying father binds the monster to a bargain.

After he feels a mysterious pull drawing him toward a dark, shadowy pond in the woods, Armie looks to old Native American tales for guidance about the dangerous monster lurking in the water.

After an attack on earth, all reflective surfaces become weapons to release monsters, causing a planet-wide ban on mirrors. Despite the danger, the demand rises, and 17-year-old Marty Callahan becomes a distributor in an illegal mirror trade-until he's caught by the mayor's son, whose slate is far from clean. Both of them are exiled for their crimes to one of the many abandoned cities overrun by fog. But they soon realize their thoughts influence...