Boondocking in her truck camper, artist Kate Corliss has to stay at an RV campground in Pennsylvania after her generator stops working. Waiting for the repair, she makes friends with other RVers and enjoys the outdoors-kayaking in Loyalhanna Creek, hiking, and filling sketchbooks with drawings of landscapes and wildlife.But these pleasures are interrupted when a woman in the Winnebago next to Kate's camper dies, the victim of carbon monoxide poisoning due to a faulty heater. A tragic accident? Police check the heater, and it's operating perfectly.Other odd events accumulate, some of them rumored to be the work of a hermit living in conservation land along the river. Is the hermit real? The stakes become personal for Kate when she's ambushed by someone she doesn't see. Can she make sense of the many clues fast enough to save her own life?.