Deadlands--Follow the Walkin' Man
Mordred, Spawn of the Crimson King
A hideous creature, said to be born of the Crimson King himself...
According to Jake Chambers, Mordred is the son of the Crimson King—a creature that lives at the top of the Dark Tower, eternally seeking its destruction. Mordred is half-man, half spider.
The PCs escaped from Mordred while fleeing the ruins of Cheyenne Mountain. Frank Corbett managed to fire off a round from his pistol into Mordred’s face, injuring the creature and buying the party time to escape.