This one is still seeking a satisfying name, thus the blank nameplate. The history so far is that a Sorcerer discovered that the caverns here are powerful foci of magical energies. He hired adventurers to slay the denizens, of which the giant's skeleton is still mute evidence. Then he set about construction of the domed chambers, walling off portions of the caverns, and placing secret doors into some of the others. Given the degree of decay and the loose oozes, the Sorcerer has been away or otherwise unable to maintain the premises for some time now.
Technically, this is a first experiment in using the tablet camera and Scanbox to get this quickly onto the computer. Adjusted brightness and contrast, but it needed more light in the initial shot.