The Master's Grand Design?

A couple of draenei paid us a visit last night. They'd somehow learned that we had the book in our possession and made a very generous offer to "take it off our hands."$B$BWe didn't ask them what they wanted with the book but the young one kept talking about "the master's grand design," whatever that means.$B$BLook, I don't ask questions when money is in play. They gave us a lot of gold and we gave them the book.$B$BHe said that they lived in Nagrand - in the old Abandoned Armory, north of Telaar.