A purple worm usually claims a large underground cavern as its den, and while it returns here to rest and digest food, it spends the majority of its time on the prowl, burrowing through the endless dark or slithering along established tunnels in the constant drive to feed its immense hunger. Although not completely mindless, purple worms are rather stupid. They make popular guardians for those who have the magic to control them or a chamber in their lair large enough to hold one captive.