The Chronicles of Amber by Roger Zelazny
(I’m only going to suggest the first 5 books, as the second five end with a sort of cliffhanger- though if you can live with that, I’d highly suggest reading the next five, too.) It’s supposed to be considered a fantasy classic, but even then people hardly read it. However, this is one of the most original fantasies I’ve had the pleasure of reading. And it’s still unique. I haven’t read anything quite like this, ever. (The closest was the last Narnia book, but that still fell waaaaaaay short, and was only similar with its singular shadow-world concept.)The ending was a surprise to me, despite it being probably the one that made the most sense out of all the possibilities. I loved all the characters, and the world(s)! The whole idea of shadows and then Amber itself- I can still remember exactly where I was when I finished reading the book, and I only ever do that with books I love. (Ironically, I’m sitting there now, which is weird as it’s a couple of states away from home, at my grandparents’ house.) The five books together are actually very short, for five books. So really, people. READ THIS SERIES!