The Sídhe have cut off Ireland from the rest of the world and plan to retake their home through a war of attrition and kidnapping human teens through the "Call." Taken for three minutes of the world's time into a day's time in the Grey Land, Nessa has been Called, and even though she has crutches due to polio, she has dedicated her life to fighting the Sídhe with everything she has.
General Note
"First published in the United Kingdom in 2016 by David Fickling Books"--Copyright page.