Signs of Treachery?

Objectives
Bring the Sealed Letter (Dustwallow Marsh) to Nazeer Bloodpike in Brackenwall Village.

Description
Recovered from the body of a Forsaken apothecary, this letter hints at an underground correspondence between Undercity and the Grimtotem leadership.

"As a demonstration of good faith and a symbol of our newfound trust, we have dispatched Apothecary Cylla to aid you in battling our mutual enemy in the land of Kalimdor. None will stand before our combined might and determination."

Perhaps Nazeer Bloodpike in Brackenwall Village will know how to handle this information.

Progress
What is that you're carrying, ?

Completion
If this is what it appears to be, the Forsaken have some explaining to do!

The antics of the Grimtotems have long tried the Warchief's patience. We have traditionally treated it as a matter to be settled among the tauren people, but this letter may change it.

It will take time to investigate these suspicions, but do not speak to anyone of what you have seen this day.