Tenebris Somnia · Devora poster
The Devora poster is complete, but where is the Bathroom Key?
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Use the Lighter after finishing the poster. First combine the two Scissor Blades, cut all six Cardboard Pieces from the hallway and reconstruct the poster in the director’s office. Burning the completed image gives the Bathroom Key.
Published October 20, 2026 · Full PC release · Puzzle spoilers for this section
Make Scissors before searching the hallway
The director’s desk supplies the second Scissor Blade. Combine it with the blade you collected earlier to make Scissors. If you are still trying to cut with a single blade, finish that inventory combination first.
Walk through the hallway looking for poster cutouts that appear out of place. Stand at each one and use the Scissors. Check for a Cardboard Piece result before moving to the next cutout. You need six pieces in total.

Reconstruct the image in the director’s office
- Return to the director’s office once you have all six pieces.
- Stand at the torn poster in the back-left corner.
- Use one Cardboard Piece to open the assembly puzzle.
- Move and rotate the pieces to restore the picture.

Start with the frame edge and the large central shapes, then fit the smaller breaks. In the demonstration, the fish, flames and clothing form useful joins. Match the image across a seam rather than treating a piece as correct because it fits roughly inside the rectangle.
The screenshot shows mouse-and-keyboard controls. Follow the prompts on your own input device for selecting and rotating; this guide does not assign those actions to an unverified controller button.
Finish the interaction, then collect the next tool
After completing the image, open the inventory and use the Lighter at the poster. It burns and gives the Bathroom Key. The bathroom is directly left of the director’s office door.
Inside, take the Mop Handle before leaving. It is needed later at the square on the wall beside the windows in the Floor 2 candle arena.
If your piece count behaves strangely, check the installed update. Patch 1.0.1 fixed infinite Cardboard Pieces during this puzzle. The intended route uses the six hallway pieces; repeating an old duplication trick is not part of the solution.
Sources and version
Checked October 20, 2026 against the developer’s official guide, Poster Cutouts and Devora Picture Puzzle and its linked Unmutual video walkthrough. Patch 1.0.1 fixes the infinite-cardboard issue. Screenshots are limited instructional excerpts from those sources, not our own playthrough. Official 1.0.1 patch notes.