If people could effectively sue over such a generic storyline, bookstores would be quite empty. The books still on the shelves would certainly be original thoThe story would be about a small little creature , a bobbit , let's call him Erodo. He sets out on a great adventure to destory the one thing , and kill the evil lord Snauron. Only then will he restore peace in Lower Earth.
Can't be sure, but I believe that copyright wise it's completely legal to write and publish exactly (and I mean letter for letter) the same book as another has done before you, as long as you can prove you've never seen the other writers book before you published yours. Or it could be the earlier writers job to prove you have read his book prior to publishing your own. I don't recall which of the two.
Regardless of all that, the enheritance series is definetly enjoyable enough to read, even if the storyline is quite predictable.
Solinx