An FBI agent, rotting away in a high-security prison for a murder he did not commit... His brilliant, psychotic brother, about to perpetrate a horrific crime... A young woman with an extrodinary past, on th edge of a violent breakdown... An ancient Egyptian tomb with an enigmatic curse, about to be unveiled at a celebrity-studded New York gala... Memento Mori

Past and present collide as Special Agent Pendergast uncovers mysterious connections between a string of 19th century bear attacks in a Colorado mining town, a fabled, long-lost Sherlock Holmes story, and a deadly present-day arsonist. Just as Special Agent Pendergast of the FBI arrives to rescue his protege, the town comes under siege by a murderous arsonist who-with brutal precision-begins burning down multimillion-dollar mansions with the families...

A body is found in the attic of a fabulous Long Island estate. There is a claw print scorched into the wall, and the stench of sulfur chokes the air. When FBI Special Agent Pendergast investigates the gruesome crime, he discovers that thirty years ago four men conjured something unspeakableHas the devil come to claim his due? Some things can't be undone.