Buy this book. The Scarred Lands, which is now comatose, is a great backdrop for any RPG. I have been using it for 7 years as the setting for my Rolemaster campaign and there is still lots of room to grow. White Wolf has almost all of the Scarred Lands books on sale and the production values are generally very high.
The Hollowfaust book is great. The setting turns the whole undead and evil necromancer bit on it's head. The Necromancers are benevolent tyrants with some really interesting quirks. The first time that your party goes to Hollowfaust and 'gets' what is really going on will be a session you will always remember.
There are great villians and super background material but Hollowfaust shines as the center of a campaign whether the characters are tied to the necromancers or not. Buy this book.
[5 of 5 Stars!]