This is straight up just a Conan adventure! It rules! So first off: Great JOB!
Everyone else pointed out a lot of the good stuff but I wanted to commend how good the encounters were. They are both evocative and impart important information to the players. Just phenomenal environmental storytelling all around basically. I received a critique on my random encounter table for my game so I've been thinking about that more and you ACED it.
I think a few details got mixed up in final editing, I.E. the previously mentioned Hex D and E, but also at some point there is a reference to a "transformed stygian" which I would guess from context is the same as a "scaled stygian" but I wasn't sure if that was intentional or not.
Finally, amazing job working in the mechanics of BSH. All of the stuff that triggers off of Doom understand the mechanic perfectly, and I thought there were several clever uses of usage die as well! I almost designed for Black Sword Hack for my adventure and I'm kind of kicking myself reading over yours! Oh well!