"To Pea, Love Mom" ...reads the necklace twelve-year-old Pea finds stuck high in the willow tree Mom had planted long ago on their ranch. Pea doesn't know how it got there. If Mom were alive, she would ask her. But when Pea takes the necklace, the tree reveals a secret tunnel to Willowmere-the magical world built by her mom's stories. Pea crawls through the tunnel and realizes that Willowmere is crumbling. Frightening dangers lurk behind each tree, and magic is deteriorating into chaos. All she learns seems to contradict everything she knows. But could Mom still be alive in Willowmere? If Pea can learn to trust her new friends, and harness the power of stories, she might just save the world. But she'll have to save herself first.