The physical book is 60 pages worth of material and deals with running a Lovecraftian-inspired game of horror fantasy. The PDF is 66 with covers and an ad for Mutant Future.
A few new races are introduced for a Race-as-Class style game with notes on other classes to use in an advanced game; Sea-Blooded, Subhuman, White Ape and White Ape Hybrid.
Next, are some new magical formulae and some new spells all based on various Lovecraft sources. Enough to sprinkle into various dammable texts for the players to find AND then really get into trouble with.
We come to the monsters and all the old favorites are here. Comparing them to other sources of similar monster will give you plenty of differences in stats, which is a good thing really. Players who are familiar with other books should not have knowledge their characters do not.
A small section on Eldritch Artifacts, a staple of many of Lovecraft's mythos stories.
And finally a section on Psionics which differs from other books/games.
We get some appendices on Eldritch tomes and an artifact generator. Appendix 3 covers the use of these psionic rules in Mutant Future. And Appendix 4 covers the stories and books used.
We end with the OGL section.
The book is awfully fun and is full of great ideas. If you are a fan of Labyrinth Lord and Lovecraftian tales then I would most certainly grab this.