Journey into Mystery / Thor Vol 1 #264

Plot

Loki now rules Asgard in Odin's stead, by his own royal decree contained in the Cask of Sovereignty, and even Thor must obey him; Loki knows that he must dispose of Odin if he wants to keep the throne; Loki then reveals that he was behind the empty army, and that Kroda was the second Thor, and that the document from the Cask was a forgery; The Enchantress and Executioner steal the sleeping form of Odin; Sif, Thor, and Recorder head to Karnilla's domain to find Balder, while the Warriors Three are charged to protect Odin; Thor's group in then assaulted by two Storm Giants, and Thor defeats them both. (mycomicshop.com)