(Key word: squeeze)
The Drake, Quirinklauth, has amassed a tremendous hoard of treasure in his cliff-top lair. Quirinklauth enters through a small cave that leads to a hole in the top of a one thousand-foot-high subterranean dome.
Other creatures must enter through the winding, narrow passageway; the passage is so narrow, in fact—sometimes narrowing to only a few feet—that human-sized creatures can only proceed at a fraction of normal speed. The passage is also, on average, only three- to four feet tall.
The hoard in the domed cavern is dozens of feet deep, and includes weapons, armor, gems, and coins, as well as art objects. The items are both mundane and magical