From acclaimed author Phoebe North comes a riveting, unexpected, and beautiful contemporary novel about a girl whose brother mysteriously disappears, the family and friends he leaves behind, and the stories—real and imagined—that they tell themselves to fill the empty space.

From the moment that Annie was born, she and her older brother, Jamie, were inseparable. Alike in almost every way, they promised to always take care of each other while facing the challenges of growing up different in suburban America. And when life became too much for them, they created their own space in the woods behind their house: a fantasy world, called Gumlea, where no one else could find them.
And it was enough, for a while. But then came middle school, when Jamie grew dark and distant. He found new friends, a girlfriend, and a life away from Annie and Gumlea. Soon it was as if she hardly knew the brother who was her other half.
And then, one day,...