"I'm sure I will, lad. Don't worry, your master's a tough old elf. We'll get whatever's afflicting him out on its ear. Assuming it has ears." The guards listen to your request as a courtesy, and if you explain that it's an errand for Creios will even let you in to examine the cultists' bodies yourself. Nobody has seen a powder like you're describing, though. It is possible that other cells of the cultists had such an object and escaped when you foiled their ritual, or that an unrelated person has stolen the powder. And so there is little to do but wait, read, and possibly ask questions. Creios's books reveal that there are many primordial god-like beings such as Ayk imprisoned away in pocket dimensions. Each was tied to a specific region, such as Ayk to his river, or the cave-god Naomis to the winding tunnels of southern Yenelas. During Bacia's stone age, these beings were worshipped, and initially everything seemed alright. However, maybe 500 years before the forming of the kingdoms (or roughly 800 years ago overall), something changed in these gods. Prophets of the time called it the coming of Parasite, though scholars debate whether that was one being or many. Whatever it was, it arrived and the primordial gods started to change, becoming more violent and destructive and twisted, and any who got too close to their places of power were slowly corrupted in the same way. The higher gods, who had only been discovered during the bronze age, worked with their magic users to arrange envelopes of reality in which to trap the primordials, sealing away the Parasite with them.