Seventeen-year-old Val runs away to New York City, where she falls in with a gang of squatters who live in the city's subway system and consort with faeries, trolls, and other strange creatures.
As the possessor of Roibin's true name, sixteen-year-old Kaye returns to Faeryland to try and complete a nearly-impossible quest that will release him from the spell of the faery queen who holds him in thrall.