Ecology: Purple worms are subterranean creatures. They burrow through the ground devouring anything organic they can find, and leaving tunnels 3-6' in diameter. When the worm returns to it's lair, it will them purge itself of anything inorganic it may have eaten, such as mineral deposits. In such a lair—which is usually a fairly large cavern dug out of the surrounding earth, one can often find up to a dozen eggs, or immature worms ranging in size from 5 feet long to over 20 feet. Worm lairs are often raided by umber hulks, who prize the tender young as food. There are rumors of sand-dwelling worms that reach almost unimaginable lengths. Stories have also been told of worms that grow so large as to riddle an entire world with their tunnels. Normal animal motivations. The intelligence of a purple worm is virtually nonexistent and they are driven only by the desire to feed and propagate the species. A purple worm will attack by biting, it's large mouth more than enough to swallow a small target whole. If given enough room, it will bring it's stinger into action, striking at the largest (or most annoying) target first. In wounded or heavily out numbered, a purple worm will try to flee by burrowing. A purple worm is an immense (50' long or more) worm that's—as it's name implies—a dark purple color. Their mouth is a gaping maw filled with many sharp teeth, while their long tails end in a large stinger. Although not very intelligent, they are very hungry, and hence can be very dangerous. The purple worm is a fairly simple creature, at least with regards with what it can do. Like many AD&D creatures, it can swallow a target whole. Naturally Game Masters should feel free to further customize this creature as they see fit