A Hallowed Horn Walkthrough
Start Location: This quest can be acquired via a notice posted on the Kaer Muire Notice board in southwestern Ard Skellig.
Once you have picked up the quest from the notice board, you’ll notice an objective marker has appeared on the map on the small group of islands just to the south of Kaer Trolde Harbour. You can access them easily via any nearby boat, or alternatively taking the dirt path leading to the northwest from the town of Sund and swimming across to the islands at the closest possible point.
Once you are on the islands, make your way over to the objective marker, killing any wandering Pirates who come across your path.
Upon arriving at the objective marker, you’ll find 5-6 Renegades sitting around a camp fire. Approach and they will attack. Dispatch the group of them before heading for the nearby tent and looting the chest in front of it for Holger Blackhand’s Horn and a document Journal of a Thief, Part II.
With your quest items in hand, return to Kaer Muire in southwestern Ard Skellig. Find the NPC named Mathios in the small town at the base of the keep and speak with him to complete the quest.
Note: For completing the quest you’ll earn 25XP and 20 Crowns.