Strange creatures

From the moment that Annie was born, she and her older brother, Jamie, were inseparable. Facing the challenges of growing up different in suburban America, they created their own space in the woods behind their house: a fantasy world of their own making, where no one else could find them. But as they grew, Jamie grew dark and distant. He found new friends, a girlfriend, and a life away from Annie and their shared world. By the time Annie was in eighth grade, it was as if she hardly knew the brother who was her other half. One day, he disappears. As days turn into months turn into years, Annie comes to believe that Jamie, somehow, has entered the world they created... and she is the only one who can bring him back.