Okay, long story short: I found mirage tower, completed all the tasks, got a honedge, but then after doing that I realized I forgot to find the mimikyu that was supposed to be in a cave on the first level of the puzzle, but I couldn't get it since the stairway from completing the first puzzle was blocking it, so I just left it alone and left the tower. The next day I found a mirage in the desert, which was strange since I thought I had already found them for the mirage tower and from other sources, it was supposed to stay there. I went back to the place where the mirage tower was supposed to be, and it was gone (back to it's original polluted pond etc.) So I found three mirages like I did last time, but the tower still didn't appear.
I'm not sure whether I have to find more mirages? How do I make the tower reappear?
(Sorry if this question has already been asked)
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