A Greedy God

Before this quest can be done, Geralt must complete the "Wandering in the Dark" quest to obtain the Eye of Nehaleni from Keira Metz.

Objectives

 * 1) Address the Allgod using the altar.
 * 2) FInd the Allgod using your Witcher Senses.
 * 3) (Option A) Kill the Sylvan.
 * 4) (Option B) Convince the sylvan to change his ways.
 * 5) Talk to the peasants.

Journal Entry
" In the backwoods of Velen, Geralt came across an altar, and next to it - two troubled villagers. When asked the source of their worries, the peasants told Geralt the deity they worshipped - the awe-inspiring Allgod - had rejected the offerings they had brought him. The Witcher was not a particularly god-fearing individual, yet nevertheless promised that he'd intercede for the peasants with their deity."

"It turned out the revered Allgod was a run-of-the-mill Sylvan, or, as the common folk call these beings, a Deovel. The conniving best had convinced the local peasantry of its ddivine powers and had grown fat on their offerings for decades."

(Option B)

"Geralt convinced the Sylvan demanding outrageously sumptuous offerings in time of poverty and famine was immoral and unbecoming, even for a false god. The Sylvan seemed skeptical at first, but after eyeing the silver sword on Geralt's back he decided he'd best not argue."

Walkthrough
Somewhat south of Wastrel Manor and near Oreton you'll find a ruin with some Peasants within. The peasants explain that they're making an offering to the Allgod, which has been responsible for protecting and blessing them - or so they think. One of the residents had reportedly been out gathering brushwood when a bush caught fire - a miracle as far as he was concerned, and out of nowhere a voice spoke to him demanding offerings and worship.

Geralt, and Witchers alike, are not particularly god fearing and Geralt offers to mediate on behalf of the peasantry - likely knowing there was some kind of normality and explanation behind this.

Using his witcher sense, Geralt is able to spot an open casket of what he thought was wine - but turns out to be vinegar. Following this scent, Geralt finds an illusion which he dispels using the Eye of Nehaleni, only to reveal a cellar below housing a fat Sylvan which was acting as the Allgod and demanding tributes from the peasants - unpleased with his offerings he had placed a curse on them.