Sinstone Delivery

Objectives
Fly with Echelon and deliver the Accuser's Sinstone to Lord Chamberlain.
 * Fly with Echelon
 * Meet Lord Chamberlain on the Halls of Atonement balcony.

Description
Lord Chamberlain has held off the Accuser to buy us the time we needed to break the ward on her sinstone.

But, thanks to your delays, our reinforcement of his position is overdue.

I will collect the Accuser's sinstone and carry us to the battle.

Rewards
You will receive:
 * 3,900 XP
 * 3,900 XP

Progress
Hurry up, Maw Walker.

Completion
This is, in fact, one of the larger sinstones I have seen.

This will be easy to exploit.