Two keys, two doors
Henry’s Key and the Corridor Key are different items. The attic safe gives you the Corridor Key, which opens the story corridor. Henry’s Key opens the bedroom door inside that corridor.
Find the banquet room
Look for a dining room with a fireplace, portraits and Money Man clues. The table carries the rule No toys at the table! The target place setting is the plate surrounded by coins.
You need this room to appear in the house. An ordinary dining table is not a substitute, and a specific biome is not a guaranteed way to generate it.
Open the fireplace passage
- Bring an idol to the banquet room.
- Place it on the coin-ringed plate and release it. Holding the idol above the plate is not enough.
- Watch the opposite portrait rise to reveal a lock.
- Enter 071476.
- Go through the opened fireplace into the hidden vault.
- Take Henry’s Key from the pedestal of the central statue.
The key in your inventory is the success signal. An open fireplace alone does not mean you have collected it.
Return to Henry’s door
Use the Corridor Key to open the entrance opposite SHOP if it is still locked. Enter the corridor and find the door asking for Henry’s Bedroom Key. Use Henry’s Key there.
If you are at the attic safe instead, its combination is 091387. Do not swap the two codes or expect the attic reward to open every locked door.