To open this door, you must first use the tusk with the panel. Once the panel is off, attach one end of the wire to it and the other end of the wire to the sparks in the floor. This will restore power to the door and allow you to open it using the green rod combination. Go inside and use the tram. Keep on walking up. Brink is on the plateau that is located past the cave interior. He's no help to you, so just ignore him for now. On the edge, look for the place where it says "opening" and use your shovel with it. This will open up an entrance to a tomb. Once inside the tomb, step on the stone with the two moons on it and use the rod with the stone to keep it down. Next, use the blue crystal you found in the power room with the hole in the wall. This will turn on the tomb's lights. You now must go outside and look for a spot labeled "dirt". Click on that spot and Boston will clean off a buried lens. After you do this, the light from the moons will shine in the tomb and raise a statue of an alien. Go back inside and touch the statue. It disintagrates. Don't worry. Go back out side and activate the light bridge located on the path to the cave. There's nothing else you can do here now. Return to the Nexus.
