Tracker O'Shaughnessey is a young girl with lycanthropy who dropped out of school and lives with her uncle, Jawbone. Her immediate family believes in Sol and kicked her out after she questioned their beliefs. Tracker is a young woman with lycanthropy, a disease that allows her to turn into a werewolf; though she prefers to stay in human form. She has a unibrow and has an undercut on one side of her head. She is described as strong-looking, broad-shouldered and looks like a hiker.