Part 1 - The Upstairs Hallway
Upstairs Hallway is up from Saloon. "Standing in the dim hallway above the saloon, there are two doors marked A1 and A2 to the west and east respectively. There are stairs leading down."
The staircase_down is scenery in the Upstairs Hallway. The description is "The railed staircase, carpeted with a rich red fabric, leads down to the first floor of the saloon." Understand "staircase" and "stairs" as staircase_down.
The _hallway is scenery in the Upstairs Hallway. The description is "In the dim light of the hallway, you can see two doors marked A1 and A2 to the west and east respectively. There are stairs leading down." Understand "hallway" and "hall" as _hallway.
Door A1 is a door and scenery. It is west of the Upstairs Hallway and east of the Front Suite.
Instead of knocking on Door A1:
say "There is no response."
Door A2 is a door and scenery. It is east of the Upstairs Hallway and west of the Back Suite.
Instead of knocking on Door A2:
say "You hear some movement from inside but then silence."