In Chapter 4, Norah arrives at the top of the mountain and discovers a temple that she must enter. There are 14 paintings and one hidden object to be found in this chapter.
Restore the speakers to power
Follow the path that goes up until you reach the first structures. Look everywhere for historical pieces, then make your way to the temple entrance. On the way, don’t miss this painting on the right.
When you stand in front of the temple, look into the pools opposite the entrance to spot the symbols on the floor.
Then go to each of the 4 pillars that are in a semicircle opposite the entrance to the temple. Observe the painting of each of these buildings and press the button that corresponds to the location of the symbol in the drawing in the pools. Be careful, one of the pillars has collapsed and you have to go down the stairs to press the button.
Once the buttons are properly locked in place, stones on the top of the temple will move, changing the position of the falls. One of those falls will now fall onto the paddle wheel, which will allow you to restart the electricity. Go to the steering wheel.
In order to convert the energy of the wheel into electricity, you have to engage the gears. Unfortunately the levers are blocked.
Go back and use the knob to turn the wheels and put the hole towards the gear bar. Start with the one closest to the wheel. Position the circle and pull the lever. Do the same for the other two levers.
As soon as all gears are turning, press the buttons on the device next to the generator. All LEDs must be lit to supply power to the system. 
As soon as the buttons light up, press the two levers to illuminate everything on the construction site.
As in Chapter 3, follow the cables on the floor to find the next box and pull the lever.
Keep following the electric cable and climb the ladder to pull the lever on the bridge.
Unfortunately this doesn’t work well. While Norah holds on to use it, she falls off the platform and passes out. She wakes up in a desolate desert, to say the least.
The desert
Just follow the straight path. Throughout the trip, Norah will suffer from visions regarding her illness. At the end of the street you will come to Norah and Harry’s house. Look at all of the documents and photos, then go upstairs.
If you examine everything you will find the hidden object of this chapter. It’s a postcard on a piece of furniture to the left of the fireplace.
Then interact with the music box on the chair to make Norah wake up.
Entrance to the temple
Back at the top of the mountain, go back to the temple entrance and activate the last control box. Then stand on the microphone and interact with it to start singing. Norah’s song will wake the temple and the door will open.
Enter the temple and admire the 5 murals you will find along the way. Once in the room with the little fish head, read the various documents before pressing the elevator button to go upstairs.
Compose words and phrases with symbols
When you get to the top, you will be faced with what is probably the most complicated puzzle in the game. However, once you figure out the trick, it’s extremely easy. First, read all of the documents you can find in the room and examine the 4 murals. Don’t forget to watch the 4-digit dial on the exit door. Also examine this symbol on the wall:
Your log should now look like this:
There are therefore 4 symbols (transformation, fluid, life and eternity) that are used to make 4 words. For each of these symbols, you need to align the arrow on the clock face so that the stars correspond to the presence of these symbols in the words.
Let’s start with the simplest one: the “liquid” symbol. It is present in the words that are in positions 1 and 3. Its two stars are therefore well positioned in position 1 and 3 when the arrow is pointing up.
Then position the arrow of the “Transformation” symbol so that its star is at position 2 in relation to the arrow. So turn the arrow one notch to the right.
The last two symbols are a bit more complicated as they appear in 3 words. The symbol “life” is in the words at positions 1, 3 and 4. So you have to rotate the arrow two notches and point downwards.
For the “Eternity” symbol, it is in positions 1, 2 and 4. The arrow must therefore also be positioned downwards.
As soon as the dials are correctly positioned, the door to the room opens. In the next room you will find 3 drums. Interact with them and play back the sequences that you hear. 
Once all the sequences are complete, the structure in front of you will be reformed. Step forward and put your hand there. Let the black mud overwhelm you and make your way to Chapter 5!
Summary of the Call of the Sea walkthrough
Table of Contents
