A lithe weasel drapes across your shoulders, sleek reddish-brown fur warm and silky, black-tipped tail flicking. Tiny claws prick lightly, whiskers twitch against your neck, sharp teeth glint in a narrow snout, bright eyes gleaming with feral cunning.
Capricious Fey spirits incarnated into bodies reminiscent of normal pests, vermin familiars serve spellcasters and especially vermin hags. While they are most often drawn to serve wicked masters, they also delight in playing the part of dutiful servants to corrupt spellcasters who aren’t evil.
Vermin familiars are gripped by deep-seated fears shared by the vermin forms they inhabit, and as such, are terrified of dogs and other canines.