Dragonflayer Battle Plans

While we were able to gather very little information as to the whereabouts of Ingvar, we do know that Yanis resides in a cave next to the worg pit inside Wyrmskull Village. Intelligence gathered from the rescued soldiers indicates that Yanis guards Dragonflayer battle plans. I need you to go back to Wyrmskull and recover those plans. Kill any vrykul that get in your way - including Yanis!