No matter how inactive my blog, I have been trying to come up with something for the One Page contest every year since 2013. This year I was going to post another suite of rooms from my megadungeon but inspiration struck at the last moment - "what if you had a dungeon that was inside a door? A giant door?" The rest practically wrote itself thanks to a very detailed engraving of a crunchy old-time castle door, some pun-generated monsters, and a meta-puzzle about opening the Door from within and who might want you to do that.
"Shrunken adventurers" is a trope verging on cliche so I gave the GM the chance to make the door an actual, 300' high door in some unfathomable dungeon, which I think is the clutch choice for sure. Anyway, it feels good to be able to throw something into the ring on fairly short notice!
Perils of the Sunken City
44 minutes ago