Is there a door? If so, I listen through the door if I can hear anything.
Listen: (1d20+7)[27]
If I hear nothing, I open the door and creep 5ft in
Move Silently (1d20+3)[22]
If I hear something, I'll take a different action.
If there's no door, I go back to the room we started (taking the money pile with me), and unbar the bottom door.