Grindhelm the dwarf and
Blade Rain the fighter stand atop the hill as their comrades exit the chamber of underworld dioramas. They hear Siavel's words about the north door and chamber, and see
Bruno the Mad darts back in to investigate it. The gnome thief-acrobat crosses the sands, his nose bloodying again (
1 HP), then hugs the hill to avoid the brunt of the searing heat of the eastern chasm of flames, and heads northeast to the door. By the time Bruno reaches it the gnome is still hot as hell (
1 HP). Thankfully the door is not trapped or locked, and inside he sees...

Grindhelm decides to join the group at the south door. His low dwarven balance helps him as he suddenly feels an invisible push from behind on his knees, but the dwarf manages to stay on his feet. Blade Rain, thinking that Bruno shouldn't be alone, races down to join him. He too is pushed and stumbles, falling down badly (
1 HP), gets back up and joins Bruno at the north door. While going there he passes through the diorama of lave and flames, and the fighter is suddenly overheated (
1 HP damage).
Meanwhile,
Siavel takes advantage of his infernal vision of seeing-through-walls to spy what lies beyond the secret door farther down the south hallway. The others follow.
Leomar the thief advances ahead and checks the secret door, finding no traps. The trained eye of Leomar detects that the secret door swings on a horizontal pivot in the middle of the slab. By pushing in at either the top or bottom of the secret panel, the opposite end will swing outward. There is a dark stain on the floor before the door. Siavel sees that behind the secret door is a short hallway that goes west, then south, and is at that point beyond range of his sight. (
See map.)
There is also a corridor running off to the west, extending 40' as far as the torchlight.
As the elf enchanter proceeds further down the hallway, he also sees the heap of treasure...

...and surprisingly he sees no traps around it with his piercing vision. Again Leomar the thief moves ahead to examine the suspicious horde. As he does so, pale yellow dust has rubbed off on part of his hand or fingertips and it suddenly burns like acid! (
5 HP)
Siavel observes beyond the treasure, in the west wall of the hallway at the end, a
second secret door. Behind this a hallway turns west.
Map - What Siavel Sees