Keller is a shapeshifter in Night World. She first appears in Witchlight, as the protagonist. She has waist length black hair and cool grey eyes. Only 17, she has the reputation of never losing. She was sent on a mission to find the third Wild Power and bring her to Circle Daybreak. She often goes by her last name, Keller. Her mother abandoned her when she was young, only leaving her with a poem. During the mission, she found that the witch child was not who she thought she was, describing Iliana as 'childish'. Despite destiny, Galen was promised to Keller instead of Iliana. Keller has two friends, Nissa Johnson, a lamia and the driver and Winfrith (Winnie) Arlin, a young, fighting witch.