A Pinch of Ashes

Background
Whilst exploring the Korcari Wilds as part of the Tainted Blood and The Grey Wardens' Cache main quests, you find a Dead Soldier who was sent to the Wilds with some ininteresting information about local myths and legends.

Walkthrough

 * Loot the Pouch of Ashes and Excerpt from Local Myths and Legends from the Dead Soldier by the bridge in the Korcari Wilds (the location of the battle with the Hurlock Emissary).
 * You will receive Codex Entry: A Pinch of Ashes.
 * As indicated in the codex entry, head roughly north-east to a promotory overlooking a sunken dome and interact with the Pile of Stones there.
 * Gazarath will be summoned if you sprinkle ash on the stones. Kill him and loot the Pile of Rags he drops.

Result

 * Killing Gazarath will net some experience.
 * You will also receive Codex Entry: Shade
 * Gazarath most frequently drops the Enchanter's Footing boots.