Swarm, Cranium Rat - Average Pack

Medium-size Magical Beast (Swarm of Diminutive Creatures, Extraplanar)

Source(s):	3E Fiend Folio
Alignment:	Usually Neutral Evil
Climate/Terrain:	Any land underground or outer planes
Challenge Rating:	5
See Also:	Swarm, Cranium Rat - Lesser Pack; Swarm, Cranium Rat - Greater Pack; Cranium Rat
Indistinguishable from a normal rat except for part of their brain being revealed, these are likened to the eyes and ears dispatched to gather secrets for some dark deity of knowledge, sharing what they learn in a bizarre hive mind.