Slow floating squid-umbrella mobs with a psionic attack — upgraded Mind Horrors, harmless to high-charisma crawlers.
Brain Boilers are slow-moving floating mobs — a cross between a squid and an umbrella — that Carl's party farmed near the Skyfowl-Settlement. Upgraded versions of the second floor's Mind Horrors, they wield a psionic attack that the party's high Charisma renders harmless, making them easy kills. Some drop ink pouches, which excited Mordecai (an alchemy reagent).
Mongo shredded them so fast he became an experience hog.
A slow-floating creature resembling a cross between a squid and an umbrella.
Easy psionic grind-mobs and a source of alchemical ink.