First, decrypting the Sphinx requires completing the zodiac mission first. Although it does not affect entry, it cannot enter the next level.

The question mark displayed by the constellation is golden and luminous (the question marks are also used in special locations such as pyramids) which can be found by players

After, the constellation mission prompts to return to this stonehenge to perform the plot

After the plot ends, the Sphinx is on the topic

There is a small hole behind the Sphinx, and this is the entrance

There is a small hole here in the tomb chamber (it originally had a spider web), which is the entrance to the lower floor

Enter the innermost, you can see this device (the number of beams is the same as the number of your decrypted constellations)

According to the plot and device, it is best to start a pulse and collect the shiny crystal (silica) nearby

Finally, we come to the middle device, and after starting (as shown in the picture, 50 glittering crystals are needed) we start philosophical discussion and the completion of the worldview

End