Where the Corridor Key is
The key is in the six-digit safe inside the hidden room above the game-room ceiling. The combination is 091387. It opens the entrance to the story corridor, not Henry’s bedroom door itself.
Climb from the fireplace

- Stand by the central board and face the fireplace. Find the little table and chair on its right-hand side, the portraits above the mantel and the corner bookcase.
- Use the furniture beside the fireplace to get onto the mantel.
- Continue via the portrait or shelf edge to the horizontal wooden trim by the bookcase corner.
- Follow the wall trim toward the small shelf supported by metal brackets. A large painting rests there.
- Use the large painting and the smaller landscape frame around the corner to reach the upper wooden ledge.
- Follow that ledge to the broken opening above the room and enter the hidden space.
Use the shelf, frames and changes in height as landmarks. The high frames are narrow: line up your next landing before jumping. Blocks or movement upgrades can help, but neither is a required first step for this route.

Open the safe
Set all six digits to 091387, open the safe and pick up the item named Corridor Key. Opening the safe without taking the key does not finish the task.
Open the correct door
Return to the game room and find the wooden double door opposite SHOP. Approach with the key; the locked prompt reads Need Corridor Key. Use the interaction prompt to open it.
Inside the corridor, Henry’s door requires Henry’s Bedroom Key. That is a second puzzle, not a failure of the Corridor Key. Follow the Henry’s Key guide next.
Climbing and item mistakes
This route uses the Early Access game-room layout. Collision and jump tolerance can change, so use the landmarks rather than treating a particular pixel or jump timing as fixed. Controller sprint behavior also differs from a keyboard recording.
If a movement die lands in the upper space, climbing up can let you retrieve it. Do not throw a revival die into the outer boundary as a shortcut for reaching the room.