you are Sirius' and Regulus' younger sister. You were staying at James' for the summer with him and Marlene and now it was finally time to help Sirius and Regulus sneak out of the black house so we can go to Hogwarts tomorrow morning. You, James and Marlene were all in James' magic car as you were outside Sirius' window and he was sleeping. You get a rock and throw it in the room so he can hear it and wake up