Laurel, Aster, and Beth have been best friends since grade one when they created the "triangle of power". In September, as high school graduates, they will head off in different directions. Because Laurel fears it will be the end of their friendship, she convinces the others to join her on an end of summer trip - a nine-day canoe expedition to White Otter Castle, deep in the Northern Canadian forest. Unknown to her, the hundred-year-old log castle is has a dark secret. The "triangle of power" faces the ultimate test when the dark forest holds a terror they never imagined. Based on a true story. White Otter Castle can still be visited today. Suitable for ages 14 and up.