She wants revenge. He wants her. Blackballed from underwater archaeology after accusations of artifact trafficking, Erica Kesling has a new job and a new life on the other side of the country and is working to clear her name. She's closing in on her goal when she's distracted by a sexy, charismatic intern who makes her want something other than revenge. But Lee Scott is no intern. He's looking for the lead conspirator in an international artifact smuggling scheme, and Erica is his prime suspect.

Set in the wilds of Maine, this is an explosive tale of an estranged son thrust into the hunt for a murderous fugitive - his own father. Game warden Mike Bowditch returns home one evening to find an alarming voice from the past on his answering machine: his father, Jack, a hard-drinking womanizer who makes his living poaching illegal game. An even more frightening call comes the next morning from the police: They are searching for the man who killed a beloved local cop the night before - and his father is their prime suspect.

Rowan Gallagher is a devoted single mother and a talented architect with a high-profile commission restoring an historic mansion for the most powerful family in Maine. But inside, she’s a mess. She knows that stalking her ex’s avatar all over Portland on her phone isn't the healthiest way to heal from their breakup. But she’s out of ice cream and she's sick of romcoms. Watching his every move is both fascinating and infuriating. He's dining out while she's wallowing on the couch. The last straw comes when he parks in their favorite spot on the waterfront.

Dan Garvie’s life has been haunted by the crime he witnessed as a child—narrowly escaping an encounter with a notorious serial killer. He has dedicated his life since to becoming a criminal profiler, eager to seek justice for innocent victims. So when his father passes away under suspicious circumstances, Dan revisits his small island community, determined to uncover the truth about his death. Is it possible that the monster he remembers from his childhood nightmares has returned after all these years?

Meanwhile, Gillan McArdle’s academic career is ending because of one stupid lapse of judgement. Offered a short-term contract, he lands on the Hebridean island of Harris to investigate obscure animal bones. Quickly dismissing the unicorn skull as a thinly disguised fake, he can’t deny there’s something unusual about these bones. Baited by rumors of a majestic tusked horse roaming the uplands, Gill begins to suspect someone is manipulating him. As he gradually unravels the mystery of the skull, he grasps a disturbing conclusion: If this creature does exist, the evidence suggests it’s a killer.