His sister -- She is younger and very much unaware of what sort of clients The White Rabbit caters to and the fact she comes from magic. Their father forbade Elijah from sharing anything with her, and in a lot of ways Elijah does everything he can to protect her from the not so pleasant aspects of the world he inhabits. She's aware of the strained relationship between Elijah and their dad, but not the reason or cause of it. They're close, but Elijah she's strong-willed and defiant, so maybe just maybe she's beginning to get curious?