Madison was a girl who lived at Waterfall House in Keswick under the care of Stella Connor. She was one of Kyla's only friends in Shattered.
Madison is first introduced when Kyla arrives at Waterfall House. Stella tells her to escort Kyla to the tower room, of which Madison is jealous because no other girls are allowed there. Despite this, she is friendly to Kyla and tells her about Stella's overprotective, nervous nature, calling her "The Queen of the Weird." Kyla slightly agrees with this description, but feels bad for Stella because she has gone through a lot of family trouble with her bullying mother Astrid, her dead husband Danny, and her missing daughter Lucy.