So no clerics in Yethlyreom. That makes unholy water very difficult to obtain. Since the entire economy of the city relies on zombies, I figure they have to have an alchemical equivalent.
The cost would be the same as unholy water (25 gp per vial), with a 100% increase outside off the inner city (i.e. 50 gp for PCs unless they make some friends).
Does anyone have any suggestions for possible monster parts (other than corporeal undead parts) and costs per vial? The usual equivalent would be 12.5 GP cost.