Cover by Jack Kirby.
"The Day Loki Stole Thor's Magic Hammer" featuring the Mighty Thor by Lee/Berns and Sinnott. 13 pages.
Loki is chained to a rock in Asgard in penance for his schemes. He plots his revenge against his half-brother and thinks that Thor can be defeated without his hammer Mjolnir. Loki opens a window of teleportation that causes the flying Mjolnir to sever his bonds. Thor must then quest to recover the hammer, a task that Loki makes more dangerous with his traps.
First appearance of Odin's wife, Frigga (spelled Fricka in this story).
Reprinted in Marvel Tales #10.
"The Remedy Oil" 2 pages, text with spot illustration.
"The Man Who Hated Monstro!" by Lee/Lieber and Reinman. 5 pages.
The circus aerialist was top billing, and it made him arrogant. When the new attraction, Monstro the Ape, becomes the new star, the aerialist seeks to ruin the ape, but Monstro shows that he knows a thing or two about revenge.
Reprinted in Fear #3.
"I Used to be Human!" by Lee and Ditko. 5 pages.
A space patrolman's ship is damaged, and the only place he can set down is the planet Rrorgo, rumored to be the most dangerous place in the Galaxy. He learns that if he eats the fruits that grow there, he will become like the natives there, monsterous in shape. He holds out until hunger makes him give in, and discovers how beautiful their world is.