“…the adventure will continue in this manner until the party leaves the dungeons or are killed therein.”
That's the last line of the section entitled Example Of The Referee Moderating A Dungeon Expedition in The Underworld & Wilderness Adventures (Volume 3 of OD&D). It's probably best read in the same voice you'd use for "The beatings will continue until morale improves."
Spartan Games - 28mm Terrain Preview
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