Ok about done, one MAJOR QUESTION - copyright.

I've take a copyrighted idea (story) and used the names and place names and the journey itself. Have I encroached upon a copyright here as a Deviation from a copyrighted material? Like doing a movie based on a book - the movie would have to get rights to make the movie, correct?

I'm not selling this or trying to make a profit, but doing it as a fan, but have I probably crossed a line?? Opinions?

Thanks
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