Keening

Found
Remains of a courier in one of the following locations:
 * Eastmarch
 * Cragslane Cavern
 * Cragwallow Slope
 * Cronvangr Cave
 * Gallows Rock
 * Lost Knife Hideout
 * Mara's Eye Pond
 * Mistwatch
 * Morvunskar
 * Uttering Hills Camp
 * The Rift
 * Autumnshade Clearing
 * Broken Helm Hollow
 * Darklight Tower
 * Darkwater Pass
 * Faldar's Tooth
 * Pinepeak Cavern
 * Tolvald's Cave
 * Treva's Watch

Quests

 * Arniel's Endeavor

Seelenklinge