*As the wand flies from his hand, and the fire flickers out, leaving him to gasp raggedly at nothing in the darkness, Sirius has time to reflect how completely idiotic it was to come here, to follow that damn hyena. He's going to die here for no damn reason besides his own bull-headed stupidity, and Regulus is going to be left to the tender mercies of Bellatrix, and that's the end of it. He grits his teeth and fumbles at the door at his left, then the next, in the futile hope that something will open--a window, hole in the wall, anything.*