Fourteen-year-old Blue Jasper takes his younger siblings, twins Indigo and Violet, out for a hike to give their mother a break. One moment the twins are scampering in the trees right ahead of him, and the next moment they are gone. As Blue frantically searches for them, a strange woman appears in the forest claiming to be the Faerie Queen Olea of Nearwood and the twins' real mother. Now, because of a magical pact, Blue's mother's life will be in danger if he can't find the twins before the next sunset. Blue must find his way into the magical forest known as the Crosswood and through the dangerous Faerie lands beyond it. Will he be able to find the twins in time? And will they be able to find their way out again?