Ex-Princess Onyx is a female SandWing who formerly attended the Jade Mountain Academy as a member of the Gold Winglet. She is noted by Moonwatcher to be much older and larger than the other student, due to the fact that she is 19 years old. She owns a necklace with a piece of the skyfire that supposedly killed her mother, preventing even the strongest NightWing telepaths like Moonwatcher and Darkstalker from reading her thoughts and emotions. Onyx was planning to take the throne from Queen Thorn, since her father was Smolder.