Ella

Series One
Ella is described as a black-haired girl, with one pointed ear. She is the daughter of Nemos, and the Easternman, Lily. She is introduced at the end of book one, when she gets on the bad side of Jonny, Aaron, and Kurt by accidentally trapping them in a magical cage.

Series Two
Ella was briefly mentioned by Keith as "mother," but Keith refers to her begrudgingly. It is unknown why Keith does not particularly like her or Kurt.