It's been almost 15 years since I read these. Overall they are good reads but they aren't awesome. I'm a huge PS fan and a 3.5 PS DM, but I read these books when I first started learning about the PS setting. So I'm trying to give my opinion based on someone unfamiliar to the setting and not a stickler over setting accuracy. The trilogy isn't very popular among PS fans, but as a book to read just for fun, I thought it was worth reading and they still had some pretty creative scenarios.
- Pages of Pain = Good book but it all takes place in a Lady of Pain maze. There are only 2 characters in the book but it's still an interesting read. You don't really learn too much about Planescape though.
The Bloodwars Trilogy
- Blood Hostages = Good book but it's very confusing in the beginning. Throughout the rest of the book you really need to reference monster manuals so you understand what races the characters are in order to visualize them. The books don't really explain what a race is when it introduces new characters. It explores the Planescape setting pretty well.
- Abyssal Warriors = Good book but it can also be a little confusing to read like the first one. It has a few good scenarios in it that explores the PS setting. It doesn't hold true to PS setting rules, but it doesn't really matter much because you don't really feel like you're reading a true PS setting book anyway.
- Planar Powers = Interesting book but it has absolutely nothing to do with the Planescape setting other than hearing about the Lady of Pain. The main character pretends to be a god by sticking a human guy in a closet, shrinking him down so tiny that the human doesn't realize he's in a closet. The fake-god turns the closet into his own world for the human guy to live in. It's sort of an Adam & Eve scenario.