Alexa Chase, 34, a brilliant profiler in the FBI’s Behavioral Analysis Unit, was too good at her job. Haunted by all the serial killers she caught, she left a stunning career behind to join the US Marshals. As a Deputy Marshal, Alexa - fit, and as tough as she is brilliant - could immerse herself in a simple career of hunting down fugitives and bringing them to justice.

As the Christmas holidays begin at Maude Daneson's rooming house, unsuspecting lodgers receive a most unwelcome present from the person responsible for a series of senseless and bizarre murders - a killer much more cunning than they had suspected.

FBI Agent Ella Dark, 29, is given her big chance to achieve her life’s dream: to join the Behavioral Crimes Unit. Ella has a hidden obsession: She has studied serial killers from the time she could read, devastated by the murder of her own sister. With her photographic memory, she has obtained an encyclopedic knowledge of every serial killer, every victim, and every case. Singled out for her brilliant mind, Ella is invited to join the big leagues. 

Over 200 years ago, a covert expedition shadowing Lewis and Clark disappeared into the wilderness of central Idaho. Now, seven anthropology students and their professor vanish in the same area. The key to finding them lies in an ancient secret, one involving alchemy, gold, and immortality...a secret that men throughout history have sought to unveil. Michael Rempart is a brilliant archeologist whose colorful and controversial career has earned him admiring fans and implacable foes, but he is plagued by a troubling sense of the supernatural and a mysterious spiritual intuitiveness.

What will they risk for answers? Picturesque Daylesford has a darker side. Melbourne writer Georgie Harvey heads to the mineral springs region in central Victoria to look for a missing farmer, and soon links the woman’s disappearance with the unsolved mystery surrounding her husband. Meanwhile, maverick police officer and solo dad John Franklin is working a case that’s a step up from Daylesford’s usual soft crime: A stalker targeting single mothers.