Shudde M'ell is a Great Old One that first appeared in Brian Lumley's 1969 short story "Cement Surroundings". He may have also appeared in the short story "Jerusalem's Lot" by Stephen King. He is the regent of the Chthonian, giant massive burrowing worm-like creature, and possibly even one of them.
Not much is known of Shudde M'ell's history, except that he resides on Earth, burrowing through the planet, melting all rocks in his wake with the odd acid he produces.
It is speculated that the 1906 San Francisco earthquake was caused by him.
In ancient times there were cults that worshiped Shudde M'ell, though it is unknown if there any currently active on Earth. A cult which summoned and worshiped a giant worm-like monster, which may have been Shudde M'ell himself, was active in Jerusalem's Lot, Maine, in the 1700s; the creature was driven away in 1850 by a descendant of the cult's founder.
Shudde M'ell resembles a giant grey worm, that is over a mile long, that has tentacles for a head. He produces odd accid which melts the stone in his way.
He can cause an earthquake 3.5 on the Richter scale, within a radius of 7 km, which can lead to disasters.
- Shudde M'ell is not a creation of Lovecraft himself, a but a later addition by English horror-fiction writer Brian Lumley.
- Could be based somewhat on the sandworms of Frank Herbert's Dune-series.
- Resembles somewhat a Great Old One called Rlim Shaikorth.
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