Necromantic Arts is a really good product spoiled by those editing mistakes. I still like it and use it, but it would have been nice to have, eg, the full second edition format cult of Vivamort. And how could you miss the lack of map? But the lair's description, the NPCs, the monsters, most of the spells, the insanity rules...all really good stuff. And it even has a good, workable, horrific scenario.