There are a few quests here, notably File:Alliance 15.png [71] The Shining Light and File:Alliance 15.png [71] The Ring of Judgement. Since the Vrykul are using the undead to dig a tunnel to Gjalerbron, players will move through the undead-infested tunnels. While there is an undead-infested tunnel here, this info may refer to Utgarde Keep proper.