Shudde M'ell

In the Cthulhu Mythos, Shudde M'ell is said to be pre-eminent among the chthonians and apparently the largest and most evil of his kind. According to some legends he once was imprisoned beneath G'harne, but is now free to wander the Earth with his kin.

"A great gray thing a mile long chanting and exuding strange acids... charging through the depths of the earth at a fantastic speed, in a dreadful fury... melting basaltic rocks like butter under a blowtorch." - Brian Lumley, "The Burrowers Beneath."