"The Chronicles of Thomas Covenant the Unbeliever" by Stephen Donaldson.
This post of yours intrigued me into trying the series. Now i'm on third book and i loved it. Reading on my kindle on the way between home and work. i'd like to thank you for that.
You're welcome

Just don't tell me how the last series ends; I've read the first and second series (from the 70s/80s), but he started a third one in the 2000s, and I have been waiting for him to finish them so I can read them all at once. (but he writes very slowly...)