The Murmori, a group of entities who gain power in nightmares, are spreading fear and chaos. Earth's vibration needs to be raised to wipe them out. Briggs, the last String Keeper, recruits a reluctant team to embark on a time traveling mission to defeat the Murmori. The team consists of three major players. Abigail is a teenager searching for ways to fit into this world, while Naomi, a recent widow who teaches horseback riding, is searching for ways out. Sergius, a caretaker of horses during Roman times, meets a talking horse trying to convince him that he isn't going crazy. The three are...