I have played this area many times during several dungeon runs by now but I have never managed to find all monsters.
Am I just blind and can’t find a hidden monster or hidden room? This area is the one with the gargoyle event and its eyes to open a hidden room with a treasure chest.
So, am I blind or is that a display bug on the dungeon map?
Don’t mind the two rooms after the highlighted one. I took the screenshot during the run, not after defeating the endboss.