The party moves south through the bridge complex and enters the room with the dozen gnolls guarding the gate to the South.
The Gnolls grovel before you. They would happily open the gate to allow your "dark majesties" to pass, but they claim there is a magical ward placed upon the gate.
Lenya see's an abjuration spell placed upon the gate. Lylamwyn uses Dispel Magic to remove the abjuration (Arcane Lock).
The party opens the gate and passes through into the area beyond.
The tunnel appears to have once been a natural tube created as the lava cooled many centuries ago. The party is at a Y intersection with one tunnel leading to the southwest, another tunnel going directly south, and the door behind them being closed and guarded by the gnolls.
Kerwyn stumbles across a string that was tied across the floor (DC 22 spot check to see, nobody in the party saw it).
The party hears a loud noise to the southwest and sees a metal plated wagon rolling towards them, blocking the southwest tunnel. The metal wagon is complete with a high wall with arrow slits, and orcish voices from behind the wagon. The metal wall completely blocks any attempt at melee at the archers. The wagon is equipped with several gruesome spikes to allow it to overrun and crush anyone who stands in front of it.
Several arrows are fired at the party from orc archers behind the arrow slits (Raner takes 9 damage from an arrow).
What does the party do? Fight the orc equipped metal war wagon down the southwest corridor? Go down the south corridor? Or pound on the door and ask the gnolls to let you back in?