The conclusion of the Apprentice Adept trilogy. Although that trilogy seems to have grown somewhat since the first time I read the first three. Now it's a seven part series: two trilogies and a finale apparently.
The end of the first trilogy ties up all the loose ends. The ending isn't ever in any doubt – the good guys win, the bad guys lose. The journey is the fun. Now I'm gonna have to find the rest of the series aren't I?