6) A group of monsters have collected near the hidden doorway and antechamber leading into the crypt. Roll twice on the wandering monster table. As ugly as this might seem, if adventurers retreat a bit, the pursuing monsters will have to come after them through two separate doorways, making them relatively easy to isolate and overwhelm, and it's still fairly close to the cave shrine, so spellcasters can stay in an area where they can speak, if they need that in order to cast spells. 7) This niche is set off from the corridor by a set of sturdy iron bars. Treat as X-Heavy metalwork ( GURPS Dungeon Fantasy 2, p. 18); the bars are permanently fixed in place and cannot be unlocked. The area beyond is blacked out with the Darkness spell. It's also difficult to use magic to pick out what's in the space; it's protected by a variant of the Pentegram spell (cast at level 20, if it becomes important). Breaking the bars breaks that spell. The space contains N/3 Demons From ...