I have heard a lot about the Genius Guides over the last couple of years. Even as someone who does not normally play Pathfinder, I am always on the lookout for stuff I can use in Castles & Crusades. Having heard about the Guides, and having a predilection towards undead things, I picked up The Genius Guide to the Death Knight.
This is a pretty cool book! The PDF I have for it is apparently formatted for easy screen reading, and it looks great on my iPad. The illustrations are very evocative, especially the severed head on page 17!
The book itself is devoted to a new base class, or at least a class that can be used as one, called the Death Knight. It’s a death-aspected anti-Paladin, of which there are two minor variants. The variants are based on alignment, (only Evil or Neutral allowed), and are mostly flavor distinctions. There are all sorts of cool powers available to the Death Knight. My favorite is every few levels the living Death Knight gains immunities usually reserved for the undead! They also have access to spells, which I forgot was normal in Pathfinder.
Speaking of spells, I am totally going to steal some of these for evil necromancers in my D&D-like games. The Grave Summoning spells allow a Death Knight to summon undead creatures from a list. I can think of all sorts of horrible misdirection possibilities with Mask of Life, which hides an undead’s true nature. There’s also a cool spell that allows for the caster to hide in the Low Road, which is a sort of path to the underworld. The same spell allows them to travel the Low Road from corpse to corpse.
The Low Road is a really cool concept, basically a plane of existence in which only the recently dead can go. The soul of the intelligent dead from all over the multiverse funnel through it, and it is completely inaccessible by the living or the dead who inhabit their final reward or punishment.
The Genius Guide to the Death Knight is a really cool little sourcebook that has a ton of neat ideas in it. I really enjoyed reading it, and my players may see a Death Knight or two in my next game!