The Star. The Icon. The Witch. The Construct. The God. The Engineer. The King. In a time of Tribulations, they will answer the call as Earth's Mightiest Heroes! But when the towering Terminus attacks, a new and insidious danger rears its head. One that the Avengers know all too well, and one who comes to them in the most dangerous of guises: that of a friend! Soon, the Ashen Combine, a collection of the Multiverse's greatest monsters, descends from the Impossible City - and they destroy metropolitan areas for sport! The Avengers face the battle of their lives - and one will fall. But will the Impossible City fall with them? And what kind of doom might be unleashed upon the Earth as a consequence? Plus: Kang the Conqueror searches for the missing moment!