Formless Spawn of Tsathoggua


One of my players is a fan of the Clark Ashton Smith Conan/Cthulhu stories, and wants to create a Hyperborean Scholar character who has a pact with a Formless Spawn of Tsathoggua.

I don't suppose Cthuloid creatures made it into The Scrolls of Skelos, did they? I don't particularly want to buy the d20 CoC rules especially.

Alternatively, if anyone's got any tips for converting creatures from the Chaosium CoC rules to Conan, that would be useful.