I. Escape from Silver Lake On the day of the wildfire, Kaye Peterson witnessed three miracles. The first miracle was that the campers were late. On a normal Friday, caravans of cars would wind the 40 miles west from Spokane, Washington, to Silver Lake Camp, following a one-way-in, one-way-out road from nearby Medical Lake. Each previous week’s 300 or so campers typically departed by 11 a.m., which gave staff like Peterson — who had left her job as a teacher in a Seattle suburb three years...