Northwest Angle by William Kent Krueger

In this gripping mystery set against the rugged backdrop of the Lake of the Woods, a remote area straddling the U.S.-Canada border, a family vacation takes a harrowing turn when a violent storm strands them on a desolate island. As they seek shelter, they stumble upon a brutal murder scene and a terrified infant, thrusting them into a dangerous web of secrets and survival. With the clock ticking and a relentless killer on their trail, they must unravel the truth behind the murder while navigating the treacherous wilderness, testing their resilience and the bonds of family.