Overview
The Ball of Swine, also called the Porkchop Express, is a level-15 Borough Boss on the First Floor. It is not a single animal. At least thirty Tuskling knights and courtesans lock themselves into a rolling battle formation, creating a massive sphere of bodies, armor, weapons, and red-sequined fabric.
How the formation works
While the Tusklings remain joined, the individual creatures are protected from ordinary damage. The rolling mass converts their numbers into speed, weight, and momentum, repeatedly charging along its route and threatening anyone caught in front of it. Damaging the formation enough can break it apart, but reaching that point requires surviving the ball's passes. The boss is especially dangerous for a mixed group. Carl and Donut can react quickly, but Team Meadow Lark includes elderly and injured crawlers who cannot simply scatter at full speed. The encounter is therefore a movement and protection problem as much as a damage check.
The First Floor confrontation
Carl studies the route and times movement around the boss's repeated passes. Agatha and her shopping cart remain in the path of danger, adding another unpredictable concern. Donut's limited mana and the group's uneven abilities force Carl to think about positioning, cover, and when the formation will be vulnerable. The Ball of Swine sequence helps turn Carl into a leader. He is not optimizing only for his own survival; he is making decisions for a group whose members have different speeds, health, and tolerance for risk. The boss chamber and route compress those responsibilities into one of the First Floor's defining crises.
Later echo
Book 7 introduces a much stronger rolling battle formation that Carl and Donut recognize as a variation on the same idea. That echo shows how dungeon designs return at higher levels with altered bodies and scale. The First Floor encounter becomes useful experience rather than disposable tutorial trivia.