Faithful Friend Witcher 3: Wild Hunt Quest
Group: Secondary Quests
Location: White Orchard
This quest is only available during the "Something Ends, Something Begins" main quest, and only in the ending in which Ciri decided to become empress. After leaving the White Orchard Tavern, you will witness a horse throwing a peasant off its back and start running away.
Some time after he reunited with Yennefer in White Orchard Geralt returned to that village. During his previous visit, he had hunted a griffin. This time, his task was to catch a runaway horse.
Quest stages of Faithful Friend
1. Catch the runaway horse.
Chase the horse, and it will lead you to the other side of the bridge to a Temerian soldier, who will turn out to be the real owner of the horse coming back from the war. You will talk for a while together, for example, about the war, and then the soldier will thank you and the quest will be over.
The horse belonged to a soldier returning from war. It turned out it had run off to seek its beloved master. Geralt got into a chat with the soldier and listened to a few of his bitter words about the last phases of the war.