The Erl King's Daughter Author:Joan Aiken, Paul Warren (Illustrator) Kev learned the story of the Erl King from his gran. He loved to tell it to the other kids in the playground. Then a strange girl came to the school with eyes as black as lumps of soot and dark bushy hair. She was the Erl King's daughter. Seeing the terrible things she did, Kev believed her.