The walls are once again plastered with frescoes, but these ones are heavily torn and faded. They are also much darker in hue and tone, displaying scenes of Biblical destruction—cities burning, statues toppled, people crying in despair. The flickering of the lantern only makes them that much more terrifying, shadows seeming to animate the flames and screaming faces.
Father Petronius inspects the artwork, his face growing concerned. "These robes . . . some of these figures are priests of Set. That is the god we call Thanatos, but the ancient Thothians knew him by another name. If priests of Set worshipped here, we may be standing in their tomb. When that faith was purged, those that weren't martyred were sealed away in their own temple."
As Petronius explains, Kraagor notices something odd about the eastern wall of frescoes. Where the plaster is peeling away, some of the construction looks far newer than the rest of the wall. In fact, the fresco, albeit centuries old, looks newer than anything here.
EDIT: All that walking only took 6 turns. I accidentally rolled for a 7th turn, but that won't occur until you turn west at the end of the hall. For anyone keeping score, it has been three hours in the dungeon (and you entered in the morning).
Rolls
Turn 1: Wandering Monster Check
Turn 2: Wandering Monster Check
Turn 3: Wandering Monster Check
Turn 4: Wandering Monster Check
Turn 5: Wandering Monster Check
Turn 6: Wandering Monster Check
Secret Roll
Turn 7: Wandering Monster Check