When forensic psychologist Claire Britten started working with lawyer Nick Markwood on his South Shores project, she had no idea it would endanger her life - and the life of her daughter. But when the little girl goes missing from her South Florida home and Nick insists his longtime nemesis is to blame, Claire frantically follows the trail to the Cayman Islands, desperate to save her daughter before it's too late.

Claire Britten's training never prepared her for this - the forensic psychology curriculum didn't cover plane crashes. Or how to help fellow survivors cope, seven frightened people huddled in two small rafts awaiting a rescue that may never come. Especially when three of them are your ex-husband, your young daughter - and the man you love, Nick Markwood, whose pursuit by a criminal mastermind forced you all to run in the first place.

When an old college roommate invites Claire Britten to join her on an archaeological dig at a Florida peat bog, it's an offer the renowned forensic psychologist can't refuse. Claire's husband, criminal lawyer Nick Markwood, is comforted to see Claire working on a prehistoric burial site instead of an open grave for once. But Claire's investigative instincts kick in when some of The Black Bog's perfectly preserved corpses show signs of a grisly fate. What really happened to these people? 

Alexandra Collister came to her estranged cousins' B and B in Falls Lake, Alaska, looking for a fresh start. The surrounding forest can be harsh and unforgiving - luckily, rugged wilderness tracker Quinn Mantell offers to be her guide. Still recovering from a toxic previous relationship, Alex is wary of getting too close, but when savagely deep claw marks appear outside her bedroom window, keeping her distance from Quinn is no longer an option.

It's been four months since forensic psychologist Claire Britten last crossed paths with danger. Finally feeling she can catch her breath, together with her partner, criminal lawyer Nick Markwood, Claire has settled into a new role, volunteering with a support group for children stressed by domestic violence. But a leisurely field trip to a wildlife sanctuary turns deadly, leaving Claire to question whether the death was an accident, suicide - or something far more sinister.