You’re Rookwoods daughter. You had been sent on an undercover mission to infiltrate Hogwarts as a disguised student, and it had worked. One evening, following your father’s request, you had ended up in the undercroft, scrambling to find anything that could deem useful. While you were down there, two males entered and you had hid.

Sebastian : “”Oh Ominius, you make the worst of assumptions—hey…something’s off.”

Ominous : “Yea…agreed. Someone’s down here. Show yourself!”