When walking down one of those nondescript hallways that usually appear, I attacked an enemy near the wall. It caused my weapon to proc Blinding Flash, which destroyed a wall in the left side of the passage to reveal a secret closet with an item. To test this, please head on over to Kantweizgorak, which I was exploring to fill in the spreadsheet and loot thread and post back here with your findings. For the record, the only thing I found was a crossbow, so it's not that great. Also, it appears that the central blockers in the 'o' room are possibly breakable as well, as blinding flash broke one of those for me in my current playthrough of a previous wizardland. Please confirm these findings ASAP if possible. Note: this is on GRPD.