Echo Desjardins, a thirteen-year-old Métis girl, is struggling with feelings of loneliness while separated from her mom and attending a new school. Then an ordinary day in Mr. Bee's history class turns extraordinary, and Echo's life will never be the same. During Mr. Bee's lecture, Echo finds herself transported to another time and place-a bison hunt on the Saskatchewan prairie-and back again to the present. In the following weeks, Echo slips back and forth in time. She visits a Métis camp, travels the old fur-trade routes and experiences the perilous and bygone era of the Pemmican Wars.