The trolltooth wars is in fact two stories. One is of the war between Zharrhaddan Marr and Balthus Dire, while the other's of Chadda Darkmane's quest. The plot is that, by accident, the two famous Fighting Fantasy villains end up at war. Fearing attack King Salamon gets Darkmane to turn the war to his advantage. Darkmane's an interesting hero, with plenty of depth, but his quest is sorely lacking. He achieves little, wandering around Allansia until the end of the book.Fighting Fantasy readers will find it enraging how, while players strive madly to succeed their quests yet fail, Darkmane does very little and wins.
The war itself is better. This is what provides the fun, with warfare between the hideous villains, so basically, the good and bad negate each other, leaving an average book.