That name rang a bell, I was not really sure why. I just went to my bookshelf, and one of my oldest books I actually started to collect was the novelization of the movie Total Recall (the Schwarzenegger one), written by - Piers Anthony!

I had no idea that he was pretty famous, I loved that book, but never cared about the author, time to change that! Xanth series, you say? I will definitely check that out. Thanks!