Transcript of the quest:
As you approach and before you drink the wine:
Garrosh Hellscream says: I am losing patience, Shan Kien. Tell me where I can find the Divine Bell!
Shan Kien says: Kill me if you must, but I owe no allegiance to you or your Horde. The only master I serve is the Thunder King.
Garrosh Hellscream says: Ishi, draw your blade. A few carefully delivered cuts will change his mind.
Baine Bloodhoof says: Garrosh, please. There may be another way. One that requires no bloodshed.
Garrosh Hellscream says: Speak, then!
Baine Bloodhoof says: Let us use persuasion, not force. I have here a cask of pandaren Memory Wine. It will allow us to see into Shan Kien's past.
During the cutscene:
Shan Kien says: Are the preparations complete?
Dreadweaver Avartu says: Yes, Warlord. The traps are set. The Divine Bell will be safe within this crypt, ready for the day that the Thunder King returns.
Dreadweaver Avartu says: We have but to evacuate the workers and the rest of our warriors.
Shan Kien says: There is no time. The Shado-Pan trackers are too close. They cannot learn the location of the Bell.
Dreadweaver Avartu says: Very well, then. May the ghosts of our brothers guard this place for all eternity.
Shan Kien says: Their sacrifice will not be in vain.
Shan Kien says: And neither, Avartu, will yours.