This has been bugging me for so long that I made an account on this forum just to ask for help
I've fully explored the nectary cellars, tomb of Isael, and tomb of Jean Necteaux, and I managed to get the sigils for the Cellars and Necteaux, but try as I might, I CANNOT find the sigil of the tomb of Isael! I've gone back over everything, tried looking at online walkthroughs, and even cheated by using the buy on lots cheat to see if I could find any hidden rooms I missed. All this to no avail. I get the feeling I've missed something very simple, but I don't know what! Can anyone please help me?