The room was attempting to keep the offender out. I could see the web of the arrays bracing itself and bending with each hit. Eventually the mirror cracked and shattered to the ground. The masonry behind was clearly damaged. Another rumble and the damaged area gave way more. A hole clearly visible. Harry went up to it and peered inside. Ron tried to see through it as well, but Harry pushed him aside as I heard that high pitched voice say, " Bombarda Maxima ."