QUICK ANSWER
For the Chapter 10 mountain door, set red to the upward-arrow glyph, green to the serpent-shaped glyph and blue to the combined L/E-like glyph. Expose the hidden blue clue before entering the final combination.
Door answer by color
Read each symbol by its color channel: red uses the upward-arrow mark, green uses the winding serpent mark, and blue uses the glyph that resembles a merged L and E. Match the visible shape rather than relying on a letter name alone.
The blue evidence is hidden until the room's reveal step is completed. If only two clues seem available, keep investigating the mechanism instead of guessing the third pedestal.
| Color | Symbol shape |
|---|---|
| Red | Upward arrow |
| Green | Serpent / winding line |
| Blue | Combined L-and-E-like glyph |
Suspended-mirror light route
In the later chamber, begin with the reflector by the waterfall and send the beam toward the rear reflector. Continue toward the scaffold-side reflector, then the central suspended mirror, and finish by directing the route to Faro's position.
After each move, follow the beam all the way to its current endpoint. Similar hanging mirrors make it easy to rotate the correct object toward the wrong stage of the chain.
Where these blockers appear in Chapter 10
The mountain door comes after the forest and six-junction cavern route, where the book directions are right four times and left twice. The larger mirror chamber follows later, so the door code and suspended-mirror route are not two parts of the same immediate interaction.
Use the current objective and room layout to choose the right solution: three colored symbol controls indicate the mountain door, while multiple suspended reflectors identify the light-route chamber.
Quick player questions
What are the Chapter 10 mountain door symbols?
Red is the upward arrow, green is the serpent shape and blue is the combined L/E-like glyph.
Why can I find only two symbol clues?
The blue clue is concealed until the room's reveal step is completed; expose it before setting the final combination.
