Sentinel: Descendants in Time Hints

The apparatus by the UFO-shaped object (globe with walkway around middle).

  • 1 of 3: The colors for the UFO-shaped floating object were green, yellow, white, and purple. 
  • 2 of 3: These colors can be translated into four sounds: metallic horn, tuba, tanker ship, and air horn.
  • 3 of 3: The sounds should be entered onto the apparatus closest to the UFO-shaped object, in the following order: use the second horn (from the top), then the fourth horn (from the top), then the fifth horn (from the top), and finally, the bottom horn.