Mullocks are a race of beings that live in the sewers under London, although they probably lived on the surface back in the 13th century. After finding a statue of Sir Dan, they came to worship him as their One-Eyed God.
They regard Fortesque as their God and their King asks him to save their women from the monster that took them.
Friendship is a fleeting thing, however, which is easily broken - especially by stealing their Time Stone! Once you've tried to take it, they will stab at you with their spears. You can't kill them, nor do you want to, so use your Sword to temporarily knock them senseless.