Where is the mystic key in final fantasy?

First you must have the submarine. Once you have it, from Junon, go underwater. Head north-west.

Follow the left wall, skip over the left turn into where the Gelnika crashed, then take the next left. The path will fork into 2: The first path (left) will take you to the waterfall where you meet Lucrecia, Vincent's hidden love. The second path (right), the path you will take, which seems to be just a dead end, has a secret passage at the end to the right.It's a narrow tunnel with the key at the end.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.