Amy Mugnolo

A bomb explodes on a sunset charter cruise out of Friday Harbor at the height of tourist season and kills everyone on board. Now this fishing and boating community is in shock and asking who would commit such a heinous crime—the largest act of mass murder in the history of the San Juan Islands.

A tough special agent with the Department of Justice and a dedicated single mother to her orphaned nephews, Samantha Chase is unbreakable. Until two women, both from the shadows of Sam's past, are discovered strangled. For Sam, the most unnerving detail is the eucalyptus branch tucked behind the victims' ears - the signature of a notorious serial murderer already convicted and executed for his crimes.

FBI Special Agent Faith Bold, hospitalized and haunted by her encounter with a serial killer, is ready to retire—when Turk, a K9 German shepherd, himself traumatized, comes into her life. When a new serial killer strikes, leaving his victims at the bottom of isolated wells, Faith, this time with Turk at her side, will stop at nothing to hunt him down and save the next victim before it is too late.