I forged a cthulu tesseract and went to the tomb of cthulu and got Shelton the trader with me. Then I placed Shelton there and after a while, game crashed. I reopened the game and I was at my home island with Shelton gone. Tried to make another tesseract to go to the island again with no luck finding him. Also tried going to his original city but he is not there either. Any suggestions?