Sorrow's Forest teems with beasts, some ugly, some beautiful, all unnatural. A ban restricts travel beneath her branches, existing for as long as Lakeview Township has, and most who disobey do not return.

To win a bet, twelve-year-old Mackie King enters the forest, and in its depths, he discovers a boy-like devil. Then he steals him from the trees.

In as little as an hour, the devil names himself Blue and fits seamlessly into the Kings' life. No one seems to remember he wasn't always there. Only Mackie knows the truth.

Now, Mackie and Blue are grown, Queen Sorrow has awakened, and she wants her devil back. She's willing to tear the town apart to reclaim him. Mackie has always been resourceful, but it will take every bit of ingenuity he and Blue possess to thwart Queen Sorrow and her minions, save the town, and free themselves from the shadow of the bittering forest.