Terminal Treatment (Eden Mercer K-9 Mystery Thriller Book 6)

For fans of Karin Slaughter and Michael Connelly—justice has a cost, and someone’s willing to kill to keep the truth buried.

Officer Eden Mercer never backs down. With her loyal K-9 partner Shadow by her side, she patrols the fog-shrouded streets of Nightfall, Oregon—where danger hides in the most unexpected places.

When a young woman turns up dead at the base of a hiking trail, what looks like a tragic accident quickly unravels into something far more sinister. The victim had no history of drug use—so why was her blood full of methadone?

Eden’s search for answers pulls her deep into the shadows of Coastal Serenity, an exclusive rehab center with gleaming hallways and dark secrets. Beneath the glossy surface lies a web of corruption, insurance fraud, and calculated murder.

As Eden goes undercover, she finds herself drawn to a teenage patient caught in the same trap she once fought to escape—isolated, silenced, and dangerously alone. Eden knows exactly what it’s like to be a girl with no way out.

But someone inside the facility is watching her. And as her cover slips and the walls close in, Eden must risk everything to expose the truth—before another girl disappears, and the cycle begins again.