A children’s advocacy center, The Tree House, is taking on a new fundraiser this fall — a Primal Rush Obstacle Course Race at Crow’s Lake. “Making the decision to let go of Turtle Trek and adding our first ever Primal Rush Obstacle Course Race was a big step for The Tree House,” said Becky Lee, Tree House Executive Director said. “We wanted a fundraiser that was relevant to what our culture enjoys while keeping kids in mind.