Yeah when you go into the singleplayer Goblin caves there are a few really dark corners that are pretty easy to miss and assume just end in a corner but they actually open up and lead to various hidden crypts. One of them has a kind of ghost puzzle where you touch braziers and summon little spirits around them until you open up a hidden treasure room, I always liked to think they were the tombs of past impressive greenmen from a time where goblins were more classy.
Yeah when you go into the singleplayer Goblin caves there are a few really dark corners that are pretty easy to miss and assume just end in a corner but they actually open up and lead to various hidden crypts. One of them has a kind of ghost puzzle where you touch braziers and summon little spirits around them until you open up a hidden treasure room, I always liked to think they were the tombs of past impressive greenmen from a time where goblins were more classy.