The Avengers are Earth's Mightiest heroes but even they know fear. And when a powerful and ancient evil overtakes our world, each hero must make a sacrifice to save the Earth. But as the Serpents mystical hammers transform friend and foe alike into unstoppable agents of destruction, as Odin prepares to burn he Earth to cinders to save his people, it's not these sacrifices the Avengers fear. It's the knowledge that no matter what price they pay, this battle will be unwinnable. Collecting: Fear Itself: Book of the Skull, Fear Itself: 1-7