Historical Rules · 23 July 2021
Rule 701.46c
Official source text from the 23 July 2021 Rules release
If a player is instructed to venture into the dungeon while their venture marker is in the bottommost room of a dungeon card, they remove that dungeon card from the game. Doing so causes the player to complete that dungeon (see rule 309.7). They then complete the procedure outlined in rule 701.46a again.