I'm pretty sure the plot is copyrightable, otherwise you could just translate Harry Potter to a different language and change the names of the characters.
Well the general guideline is that copyright covers the *expression of an idea*, not the idea itself.
Translations are pretty much the textbook example of a derivative work in copyright.
Your jurisdiction may vary, of course, but it's pretty well established in mine (Canada) that "plot" is an idea, and can't be copyrighted, only the expression of the idea (e.g. the written novel) falls under copyright.
Well the general guideline is that copyright covers the *expression of an idea*, not the idea itself.
Translations are pretty much the textbook example of a derivative work in copyright.
Your jurisdiction may vary, of course, but it's pretty well established in mine (Canada) that "plot" is an idea, and can't be copyrighted, only the expression of the idea (e.g. the written novel) falls under copyright.