From publisher blurb:
An ancient evil turns its eyes to the future in the necromantic mecca of Halsburg, where the servants of Ivar von Houlsmann seek to perfect the already formidable vampire race. Steep is the price of progress, however, and the discarded results of the town’s vile experiments plague its gloomy streets: Parasitic poxiva lurk in alleyways, scurrying out of the shadows to prey on unsuspecting passersby; watery vaquires haunt canals and waterways, eager to drown and possess any who tread too close; and awesome nightsuns, feared by the living and idolized by the undead, bathe their surroundings in deadly grayscale light.
Vathak Terrors: Horrors of Halsburg is a supplement for Shadows over Vathak, especially those exploring the area of the Colonies. This product is a perfect supplement for any Pathfinder Roleplaying Game, especially horror. The Vathak Terrors product line presents an assortment of creatures and encounters to use in your next adventure. Included in this product are the Poxivum (CR1), the Vaquire (CR7), and the Nightsun (CR13).