Motif · Book 2, Carl's Doomsday Scenario
The hunters
Tourists on the sixth floor, the Hunting Grounds, as Mordecai first describes them on the third: 'brave and insane' people who pay to go down and hunt crawlers — expensive and dangerous, with no protections for the hunters, so that 'every season a handful of rich dumbasses get themselves killed.'
Segment appearances
Arc
Mordecai, explaining the volcano story on the third floor: the sixth floor is the Hunting Grounds, and the first level where 'brave and insane tourists can go to hunt crawlers' — expensive and dangerous, with no protections for the hunters, so that every season a handful of rich dumbasses get themselves killed (ch. 3).