The adventure includes an original monster called the Tyrranabyss (pictured). Rather than try to convert it to Shadowdark stats I took the purple worm and watered it down (literally!) into this amphibious creature. Less HP, less size, no burrowing, but all the other nastiness. (3/10)
Comments
"I'll tell you. It was all thanks to the 3rd level wizard and 2nd level priest. Yes, really." (6/10)
"But Mark, how?!?"
Shh, let me finish. (9/10)