The Keystone (quest)

Objectives
Kill Brood Queen Tyranna and take the Sargerite Keystone. Then, join the others down-below in the portal chamber.
 * slain
 * Sargerite Keystone
 * Find the way downstairs

Description
, Brood Queen Tyranna is just ahead in the command chamber. The others already charged in. She has the Sargerite Keystone in her possession.

Finally, the object of all our sacrifice is at hand.

Rewards

 * 46,650 XP

Progress
, are you ready?

Completion
Now that we have the keystone in our possession, there is just one last thing left to do...