Death witch and Detective Mallory Mors arrives at the scene of an out of control arson called by a victim who desperately wants to die. Using her powers, Mallory battles the strongest fire witch in town to help the woman cross over. When she's forced to work with the angry fire witch, she discovers their lives are linked in complicated ways. As all the other fire witches in the city mysteriously lose their powers, the heat is on to solve the case. Saddled with a vampire assault at the local supernatural brothel, a missing person who doesn't want to be found, and a mess of vampire politics, Mallory struggles to put together the pieces before the city burns.

Mallory Mors, death witch and detective with Baton Rouge's Supernatural Investigative Unit, controls every aspect of death; she can even touch a dead body and know how it died. When she's called to the scene of the city's first zombie attack, her magic leads her to a voodoo queen who claims to be controlled by werewolves. The Werewolf Protection League, a political organization fighting for werewolf rights, insists they have nothing to do with the killings. As the kidnappings and murders continue, everyone becomes a suspect. Aided by her boyfriend, a six hundred year old vampire, and all the supernatural citizens of her city, Mallory fights to close a case that may claim her life.

Days after she's asked to read a murdered corpse pulled from the river, Detective and Death Witch Mallory Mors is visited by its waterlogged ghost. The specter begs her to stop them, but doesn't give her any clues. Pulled by earth magic to the scene of the crime Mallory finds a second victim, a politician stabbed through the heart. Her magic keeps him alive, but makes her a target for the coven behind the attacks. As the clues dry up, Mallory is attacked with magic even in her dreams. If she can't sort through the lies to close the case, she'll never be safe again.

Teenage mermaid Danika DelMar loves high school more than anything in the ocean. She fights with her mother about joining their pod, but she fights her hormones even more. No matter what her body says, she's not ready to kill someone with sex. Things get harder when Danika falls for a new boy at school. He claims to be a sea creature like she is, but she isn't sure she can trust him or herself. When a dead body shows up at Danika's reef she risks giving away her secret to make sure the police find the victim. It doesn't stop the bodies from coming. Soon she's lost her friend and the first boy she ever loved. Danika is sure a sea creature is involved, and she's the only one who can help. As her friends become targets, Danika races to find the killer.