One of the first instances that you can experience in the Wrath of the Lich King is the The Nexus. While it is a little harder than Utgarde Keep, it is closer to the main Alliance starting area. This instance is located in the instance hub of the same name and is a level-up dungeon for players level 71-73. It is located along the coast of the Borean Tundra on the island called Coldarra. Follow along in this guide to the instance to prepare yourself for the dungeon on release day.

Once inside you are greeted by a foyer and several corridors. In the foyer lies the frozen dragon, Keristrasza, who can only be freed by defeating the other 3 bosses in the instance. Each of those bosses is found down a wing of the instance, and there is no set order in which you must complete them, making the instance very free flowing. The three preliminary bosses are all very different from each other, there is the energy wraith Anomalus, the earth elemental Ormorok, and the Elf Grand Magus Telestra. Once they have been defeated you can return to the entrance and release Keristrasza and attempt to defeat her.