Meetup with the Caravan (Alliance)

Objectives
Speak with at Thistleshrub Valley in Tanaris.

Description
The pyramid inside of the Maker's Terrace in Uldum can be used as some kind of super weapon that will end all life on Azeroth.

< thinks a moment.>

You need to continue the research you've begun. Head to the southern end of Kalimdor, to the desert of Tanaris. There's a caravan there that's about to leave for Uldum.

Perhaps you can tag along.

Completion
Harrison sent you, hmm?

How fortunate!