Karen No is found on the southern tower of Aldur'thar: The Desolation Gate in Icecrown. She stands near Johnny Yes, Willy Maybe, and Kibli Killohertz.
Karen No is the line chief at the Alliance Infragreen air base and is second-in-command to Kibli Killohertz. She is responsible for maintenance and combat readiness of the Infragreen bombers. Prospective pilots report to her for their plane assignments. The planes are equipped with bombs to attack ground targets and air-to-air rockets for defense and taking out aerial targets. Also, the places are fitted with an Infragreen defense shield, on-board fire extinguishers and a fix-it 'bot for in-flight repairs.
Where to start? Well, somebody would say all the way back to Warcraft I (aka Warcraft: Orcs & Humans or the First War), or maybe Warcraft II (aka Tides of Darkness or the Second War up to and including Wrath of the Lich King, Warcraft III is the best place to start. Also, this game then elicits more interesting questions. For instance, how Illidan Stormrage became so hated or where the Scourge started. You will learn all the history and geography of the Warcraft with our help and dedication.