The Khazra Massacre
The Khazra Massacre is a tome found in Act I of Diablo III, within the Northern and Southern Highlands, from a decaying corpse in one of the zones.
It reads as follows:
Everyone is dead. Belard, that damned fool, was killed, trying to communicate with the khazra. And then the cultists showed up. As soon as I saw them, I ran. I wanted no part in their dark magic. I heard the screams of my companions, but there was nothing I could do to help.
~Osman the Hunter