Thor (1962 1st Series Previously Journey Into Mystery) #425
Hercules, Eric, and Thor return to Asgard after being warned by Sif; They find Surtur and Ymir locked in combat; To defeat them, Thor must retrieve Twilight from the Sea of Eternal Night; During the battle, Thor becomes trapped, and Eric makes a fateful sacrifice; He bridges Thor and Mjolnir, and is re-merged with Thor; Thor lights Twilight in the Eternal Flame which causes Odins control over Surtur to vanish; Surtur and Ymir fight over Twilight, and while they are distracted, Thor transports them both into the Sea of Eternal Night, where they will be frozen for all time.
Description
Hercules, Eric, and Thor return to Asgard after being warned by Sif; They find Surtur and Ymir locked in combat; To defeat them, Thor must retrieve Twilight from the Sea of Eternal Night; During the battle, Thor becomes trapped, and Eric makes a fateful sacrifice; He bridges Thor and Mjolnir, and is re-merged with Thor; Thor lights Twilight in the Eternal Flame which causes Odins control over Surtur to vanish; Surtur and Ymir fight over Twilight, and while they are distracted, Thor transports them both into the Sea of Eternal Night, where they will be frozen for all time.
