Tales of Tolgard
This magical beast looks like a gargantuan worm with dark purple, plated scales. Its maw is as wide as a human is tall and it is filled with razor sharp teeth. At the end of its long tail is a poison-filled stinger. Adult purple worms tend to have a five foot diameter, eighty feet long, and weigh about 8 tons.
Purple worms are infamous for grabbing hapless adventures, injecting their poison into them, and swallowing them whole. Aiding them in their attacks is their own innate tremorsense.
Purple worms are not intelligent and do not speak any language.
Purple worms prefer to hunt underground, but have been known to breach the surface from time to time.