Carl and Donut's crowd-funded crawler faction and fan army, victors of Faction Wars and target of Chandra's raid.
The Princess Posse is the crowd-funded faction co-warlorded by Carl and Princess Donut, which bought its way into and won Faction Wars on the ninth floor. More than a team, it is a galaxy-spanning fan movement whose earnings — royalties, merch, and the Faction Wars prize money — have made Carl and Donut fabulously wealthy. That fortune is exactly what the lawyer Princess Chandra is now legally plundering, seizing the Posse's accounts through Carl's new conservatorship over Donut.
Donut warns Chandra that the Posse 'is everywhere' and cannot be robbed with impunity.
A distributed faction and fan movement rather than a single place; represented by its warlords Carl and Donut.
Carl and Donut's faction, fanbase, and financial empire — and the prize Chandra is trying to steal.
Also appears in books you've already read — spoiler-safe to their endings: