Eredin is a Character/NPC in The Witcher 3: Wild Hunt.
"The name of the King of the Wild Hunt. the identity of the lord of nightmares, the being behind the frightful mask this long remained unknown. Overtime, however. scraps of information gradually coalesced into a full likeness of our foe - but did nothing to detract from the terror he inspired.
The Wild Hunt was in truth an elite cavalry brigade from the world of the Aen Elle, the Alder Folk, and was commanded by their ambitious and ruthless king. Eredin Bréacc Glas. He would travel via secret paths through the cold emptiness between his world from ours to capture victims and take them back to his homeland as slaves. The current object of his Hunt was Cirilla, whose power he wanted to harness for his own uses. The only obstacle in his path - Geralt of Rivia."
- Where is this person located?