Detective Robicheaux encounters a local crime boss, a Hollywood film set, and an apparition from his past as he searches for a prostitute's killer.

The exceptional young witches at Miss Robichaux's Academy are under assault by forces of ignorance and hate. Caught in the turmoil is new arrival, Zoe, who harbors a terrifying secret of her own. Fiona, a Supreme Witch with unimaginable powers, is determined to protect the Coven, but her obsessive quest for immortality will lead her to cross paths with a formidable voodoo queen and a murderous slave owner cursed with eternal life.

A ferry filled with crewmen from the USS Nimitz and their families is blown up in New Orleans during Mardi Gras. BATF Doug Carlin is brought in to assist in the recovery of evidence from the massive investigation, and gets attached to an experimental FBI surveillance unit. The unit uses technology to directly look back in time a little over four days into the past. While tracking down the bomber, Carlin gets an idea in his head: would it be possible...