But upon closer examination it appeared that the rune was merely a masking stone of some sort. The light it cast made torn and tattered objects appear whole and lustrous. And it was a trigger for the devious sand trap which would surely have filled, and killed members of the party.
At the far western terminus of the hallway, the group found a dead end. Backtracking and taking a side corridor led them back to the familiar Inner Sanctum and a gory display of weapons proficiency.
Gurin was excited about the doors in this room. He ran down to the portcullis to the south. Thinking back to the first time the group assembled in the Gatehouse, Gurin recalls the familiar sound echoing throughout the halls of the Vaults. Gurin smiled then, and placed beefy hands on his hips, leaning backward in satisfaction. The sounds of ancient gears turning and mechanical portcullis sliding into waiting sleeves had let him know the Vault was open to unhindered exploration!
He was hoping that the earlier efforts had opened the portcullis which Blackbird had warned him about. Gurin loved a good poisoned dart trap door, classic stuff! But he preferred that everyone in his party, including himself, remain poison free when possible. Catching up with the eager Dwarf, the entire party followed, certain he was on to something significant.