I think the middle book may be the weakest - which is not to say "Wizard" was not enjoyable. I think the first and the third are the strongest. The third, "Demon," is probably the most strongly-plotted, and the ending is pretty satisfying. I'd read the books before, but it's been so many years ago that I just remembered little fragments of each. It was fun to read these again, like getting reacquainted with a long-lost friend.