Pick up the Stone Disc near the left pillar and the Metal Crank hidden in the rubble on the right.
Once you have the Air Gem and the Exit Key:
Use this key on the large, heavy stone door at the back of the room.
Attempting to enter the basement without lighting the lantern will make it impossible to see the ancient patterns, and you will be stuck [5†L30-L34]. solution hidden escape lost temple chapter 6 best
Grab the Empty Bucket and the Chisel from the workbench.
Now you can make some necessary modifications to the environment.
: Tap the pile of rocks on the left side of the screen. Pick up the Stone Disc near the left
Hidden in the water channel. Go back to the Aqueduct Control Room. Dive (tap the water). Serpent Key is under the grate.
A simple Google search with specific keywords like "Hidden Escape: Lost Temple Chapter 6 walkthrough" can lead you to various solutions.
The compartment reveals a locked box requiring a specific sequence of symbols. Grab the Empty Bucket and the Chisel from the workbench
With the clues and items in hand, you can now approach the central locking mechanism.
Check the left wall torch bracket. Interact with it to swing it down, dropping a Golden Crest Piece onto the floor. Pick it up.