Just posted this on steam community and figured I might as well give you guys a heads up too in case anyone else is still interested in getting into that area.
Not sure if anyone else has tried this yet but I got into that area by having one character walk towards the stairs to get hit and die. After that, I used a bloodstone to revive that character and that single character was able to get up the stairs. Way easier than trying to toss the pyramid but obviously it will cost you a bloodstone.
No idea what you're supposed to do once you get into that area though because like everyone else who's been up there, the only thing that is of any real value is the skill book.
