There was a necromancer tower in an early issue of Dungeon magazine. It had a stairwell with broken stairs and debris. A mimic had replaced one of the broken stairs. The only possible clue is the fact that there’s more rubble than there are missing stairs.
“Empty”?
What are the mimics disguised as? Floorboards? Lint?
I had a DM make the entire house a mimic once. We spent like 6 turns of combat fighting a rug before we realized that was just the tongue.
Hit the uvula!
Relevant scene: Monster House, 2006
Edit: it was a girl House for the record
There was a necromancer tower in an early issue of Dungeon magazine. It had a stairwell with broken stairs and debris. A mimic had replaced one of the broken stairs. The only possible clue is the fact that there’s more rubble than there are missing stairs.
“Empty” is pretty contextual.