Whatever this is all about, adventurer, it's epic stuff alright. I'll bundle everything up nice for you. Take it to Historian Karnik in the Hall of Explorers in Ironforge. You'll usually find him in the back, nose-deep in some tome or another in the library. It'll take a downright army to crack the case on this one, but if what we've seen so far is any indication it will well be worth it!
No rewards listed.