Sibyl Stark is Tony Stark's biological sister, and the bold Sibyl was sorted into Gryffindor. The smart Miss Stark has perfect grades in all subjects (in fact, divination is Sibyl's best skill)
As Lily's good friend, Sibel naturally became James Potter's biggest stumbling block in his pursuit of his wife in the early days, but later on, Lily became Sirius's best assist in his pursuit of his wife.
Sibel said:? ? ?
Purpose: Rejoice in enemies