The party's pocket safe-room home between floors, complete with private bedrooms, a couch, and a kitchen.
The personal space is the party's instanced home dimension, carried between floors of the World Dungeon. It holds private bedrooms — including Carl's strictly off-limits room and the room where Princess Donut and Carl sleep — a couch, a kitchen table, and quarters for the growing roster of NPC hangers-on. At the book's open Samantha has invaded Carl's forbidden room to redecorate it with pilfered furnishings, while Tipid, Bigs, and Bucket Boy loiter and swap recaps of Faction Wars.
It functions as the crew's staging ground, rest stop, and social hub.
A comfortable instanced apartment of private bedrooms, a couch, and a kitchen, now cluttered with Samantha's stolen decor.
The party's home base and rest area between dungeon floors.
Also appears in books you've already read — spoiler-safe to their endings: