Vol'dun introduction quest line...

[Roowee]

I am sure this is a dumb question but I figure if I'm asking, someone else probably has the same question.

My toon hit 115 which opened up the introduction quest line for Vol'dun. I cannot find the guide that corresponds with this.

Any help would be appreciated.

[ZG Support 1]

For unlocking the 3 main questing zones you use the Intro & Zone guide. If you're Alliance and looking to do the Horde stuff you first use the War Campaign guide.