Thanks to your heroics, Lord Fordragon has given the command to launch a full assault against Thel'zan the Duskbringer. 7th Legion have made their way into the summoning chamber of the mausoleum and located what appears to be a gateway to hell. The only piece that's missing now is you.
Take the phylactery and report to Legion Commander Yorik inside the Wintergarde Mausoleum.
There is a tunnel that the Scourge dug out just outside the keep that you can take to get to Yorik quickly. Go now, <name>! Lead us to victory!
<Yorik lets out a sigh of relief.>
We thought you might not show up, <name>.
When you're ready I'll place the phylactery out in front of the gateway and call forth Thel'zan.
To find the entrance to the tunnel go down (south-east) into the village-part of the Keep (where the Vengeful Geists roam), turn left (north-east) and exit the keep through the damaged gates. Then turn right (south) immediately. The entrance is the greenish hole in the ground marked by torches.
The following quests have been removed in patch 4.0.3a: