When hospitalized for her clinical depression, Whimsy connects with a boy named Faerry, who also suffers from the traumatic loss of a sibling, and together they work to unearth buried memories and battle the fantastical physical embodiment of their depression.

Whimsy is back in the hospital for treatment of clinical depression. When she meets a boy named Faerry, she recognizes they both have magic in the marrow of their bones. And when Faerry and his family move to the same street, the two start to realize that their lifelines may have twined and untwined many times before. They are both terrified of the forest at the end of Marsh Creek Lane. The Forest whispers to Whimsy. The Forest might hold the answers to the part of Faerry he feels is missing. They discover the Forest holds monsters, fairy tales, and pain that they have both been running from for 11 years.