I spent some time to thoroughly create a level design outline using MS Paint (I’m a programmer). The thought of this design is that the player needs to find an object in the Torture Chamber to be able to enter the Guard Room. And the Guard Room is necessary to be able to get down to the crypt. Inside the crypt there is room for one more puzzle in the main crypt chamber to be able to get the treasures in the North Crypt and South Crypt.
I didn’t put any decorators since that would be too cluttering, but the segments does have a colour coding to indicate the appropriate decorators. Like the red squares will be prison cells and the red-brown will have torture items and so on.