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'''Longlisted for the 2018 CILIP Carnegie Medal'''
The Aes Sidhe are back. And in their quest to win back Ireland from humankind, they have placed a magical seal around the entire island. Nobody can get in or out. North? South? Doesn't matter any more. What does matter is ''The Call''. At some point during adolescence, every teenager is transported to the Sidhe realm, that grey, colourless land to which they were banished thousands of years before. If they can evade the vengeful faerie kind for a full day (just three minutes in the human world) then their lives are spared, although they are often sent back with horrific mutilations. Fewer than one in ten children survive.