A lusty, funny, gore-soaked romp of a fantasy, with well-rounded characters and a very thoroughly developed world in which the story is set. The very best fantasies have a totally imagined world through which the characters travel, rather than a series of unconnected and unconvincing locations which don't really hang together, and The War of Powers books have this completely. Not only is the world in which the story is set laid out in great detail, but the backstory is also detailed, convincing, well-explained and very relevant to events in the books.
All this groundwork of location and backstory underpins a superb plot; lusty, gore-soaked, sexy, intriguing, scary and funny. Fost, the main character, might appear as a simple overmuscled sword-swinger, but in time you get to realise that there's a lot more to him than that. Add in two very sexy Princesses, one good and one very satisfyingly evil, both up for a tumble whenever the occasion presents, a totally psychopathic Prince who you really love to hate, but also can't help admire for what he's capable of when he's not torturing victims, and a wisecracking, hedonistic ghost in a jar, and you have a really satisfying read.