Ayilu is the name given to a Fairy whom Annie met by The Annan Waters. Originally a resident of Gillitie Wood, Ayilu was one of the two last members of her class to pass the Test--which required her to die--to get a new body. Annie refused to help her in this, but Ayilu eventually passed the test with the help of Ysengrin and his stomach. (Chapter 15, Page 18) After her death and subsequent transformation into a human, Ayilu enrolled at Gunnerkrigg Court, in Foley House.