"The Power of the Thunder God!"
Written by Stan Lee, penciled by Jack Kirby & inked by Chic Stone.
Thor has been lured into a house of traps by Hyde and Cobra, who have taken Jane hostage. Loki aides the two supervillains.
"Tales of Asgard: The Secret of Sigurd!"
Written by Stan Lee, penciled by Jack Kirby & inked by Vince Colletta.
Loki tricks Thor into dueling Sigurd, who draws his strength from the ground.
Cover art by Jack Kirby.