Kazimeriz chuckled, hearing the thin, reedy sound of panic entering the flying professor's voice. "Calm down, Vindictus. I certainly do not intend my last moments to be spent drowning in the dark with Kajsa Henriksson's grandson." He cast two simple bubble-head charms on them, just to be safe. "Conserve your air. Use your wand, son." Kazimeriz said, pointing his wand at the door and casting blasting curses again. Certainly, the spells bounced off, but perhaps they would weaken the wood and surely the loud BOOMING sound of the curse against the wood would draw the attention of any nearby students.

"BOOM!"

"BOOM!"

"BOOM!"

He prayed to Merlin that someone could hear them.