Thanks for the fast reply.
Yeah I understand. Actually I don't think my game will have any dialogue, I think it'll be a bit like Myst, so the story will be revealed visually, and anyone can interpret it however they like. About the secret theme, it just fits perfectly with my idea (yeah I know it haha) so no problem with it.
And yes the "forgotten location" could be a legend (although in my mind it's story should have happened pretty recently so that's a bit contradictory ?) anyway I'll try to figure out something that I'll like to create. I have good core ideas but still don't know if it'll be first person or something else xD
Anyway thanks for your reply!