Vereth the Cunning on the Rise of Suffering has requested that you bring a subdued Lithe Stalker to the top of the rocks northeast of the Rise of Suffering,
1x Subdued Lithe Stalker Returned
First thing's first. I saw some Lithe Stalkers on the ramparts just east of us. They used to serve us before we broke with Arthas, and they're about as perfect a scout as you can get... with a little prodding from an eye of dominion.
Fly up, find one of the stalkers, beat it down a bit, and then use this Sigil of the Ebon Blade to command it's obedience. It will recognize the sigil, guaranteed. Lead it back to the top of the rocks northeast of here and it will find it's way to me.