Warlord Kaa is a giant shadow monster who first appeared in Strange Tales #79 and was created by Stan Lee and Jack Kirby. Warlord Kaa is the leader of the Shadow Realm. He led his fellow shadow monsters into invading Earth until a mystery writer named Phillip Lawrence found out and alerted the United Nations of their invasion. The shadow monsters were captured, but Warlord Kaa escaped leaving a message in the sky vowing to return and succeed next time.[78]