Three Sisters

Harper and her two sisters face extreme danger and unexpected natural disasters while hiking in the Cascades of Oregon in this story of nonstop action, survival, high school science, and sibling rivalry.

Fourteen-year-old Harper Anderson is embarking on a camping trip with her family: twelve-year-old sister Ryker, a know-it-all who likes to push her buttons; sweet, eleven-year-old sister Jentry; and their dad Jordan, who is trying his best to keep the family together. The trip is to honor their recently deceased mother, whose ashes they carry with them. Fittingly, they are hiking South Sister, one of the three volcanic peaks of the mountain range called Three Sisters in central Oregon. But when the mountain suddenly erupts, their memorial hike turns into a harrowing fight for survival. With Dad injured, it’s up to Harper to get her family safely off the mountain, amid explosions, fires, glacier melt, cave-ins, acid rain, and more tests of her wits and courage.