Glyfair
Explorer
Grazzt said:Wasnt the frost worm mentioned (maybe 1e, possibly 2e...dont recall at the moment) as a variant of the purple worm (basically a cold-dwelling version of said monster).
MMI mentions a Mottled Worm, an aquatic variation (as does the 2E Monstrous Compendium). I see no mention of a cold variation (the 2e source has the tenebrous worm, a shadow worm). If a frost variation is mentioned, it must be in some secondary source.