When you do some Internet searches there could be some confusion. The ghost has been called both Old Russia 2 and Cosmodrome 2. It can be found in the gold chest cave on Earth between the Mothyards and Forgotten Shore. Back of the cave on right side when you're walking in, sort of on the outside of the corner that turns you left towards the gold chest. If you're not familiar with it being a gold chest cave, at about the second major turn from Mothyard towards Forgotten shore you make a major turn to the right to follow the stream. If you go all the way back to the wall there is a trickling waterfall ahead of you, or along the left hand wall when going from Mothyard to Forgotten Shore. The cave is behind the waterfall and you need to jump up to it a little.