Desert Pyramids: Alien Escape

You are an alien here in this point and click escape game. You have been sent out on a mission to fly across the galaxy to find a planet where you could build another alien race because your planet has now become very highly populated. As you were flying across the galaxy the energy source of your spacecraft drained out very fast and you had no choice but to make an emergency landing on the planet earth. You knew that there in the desert pyramids you would find an ancient sphinx artifact which could restore the energy in the spacecraft. You must find it because only then you can complete the mission and fly back to your planet.