Investigate the Shards of Myzrael.
I've scouted all over these highlands, <name>, and there's one thing I've found I haven't been able to explain.
To the northeast of here, there's a circle of stones, like the others you'll find everywhere in Arathi... but the largest and most imposing of them, built into the mountainside itself.
Just between you and me, I heard voices while I was there. Whispers of the earth. If you're the curious type, you could go see for yourself...