From publisher blurb:
Nemesis NPCs – Callen Bellevaux introduces a traitorous human bard living a secret life as an assassin. His outgoing nature, healing magic, and reputation are sure to have the PCs convinced he is a friend and ally until he turns his deadly attention upon them!
This product is Pathfinder® Roleplaying Game compatible and gives you twenty ready-to-play stat blocks for a fearsome foe at all levels, 1 thru 20! This allows you to easily introduce an enemy into your campaign and reintroduce the same enemy at any time with no prior preparation. Simply find the appropriate challenge rating and go. The NPC advances along with your players with no work on your part.
If you find the character’s history and other story elements not to your liking, you still have twenty NPC stat blocks you can use as standalone characters of your own naming and developing or as minions and other rabble. Increase your available NPC stat blocks at every character level (Challenge Rating 1/2 thru 19).
The Nemesis NPCs series is designed to make the GM’s life easier. Each release provides numerous stat blocks that can be used immediately along a specific theme. Locate a specific kind of foe to introduce into your campaign or collect them all to build a toolbox of NPCs to unleash at any time. Give your players a new nemesis today!