Also commonly known as Ratmen.

• Skrak

A Ratfolk woman (and pack) are encountered in Bogroot Swamp;

You…spy a Ratfolk woman eyeing you nervously from the top of a rise in the rootpath. The woman holds a small knife and a wide metal bowl. - Tome of Encounters (RPA-ADV6)

Three Ratfolk archers fire at you from three different directions in the Colosseum of Ashes;

Three Ratfolk enter the arena: one through the northern gate, one through the southern gate, and one from the east. They immediately have you surrounded. Each aims a crossbow at your head as they march forward toward the center of the arena. - Tome of Encounters (RPA-Tome-SQ1-146)

• You beat the odds and defeat them all handily.
• Despite the loss, the match is still counted in your favor due to the unfair advantage.