Ok, a big plot point is that the coordinates the Sapphire Guard held for Girard's Gate were the wrong ones, but how is that possible? Soon was there when the gates were sealed in the first place. He would have known that the coordinates Girard gave him were false. Did Girard use some kind of Mind Twist to change Soon's memories of the gate? Is that even possible?
Just because he was there doesn't mean he can locate the place on a map. Do you know the exact geographical location you are right now in terms of longitude and latitude on the globe?