Magic and mayhem collide for more mighty Marvel action in this new adventure featuring Earth's Mightiest Heroes! Thor, Captain Marvel, and Doctor Strange have gone missing! Forced to face fiendish foes without their teammates, can the rest of the Avengers find their friends before it's too late? And what's this about a ruby?! It's an adventure you'll need to see, True Believers! Earth's Mightiest Heroes tackle adventures perfect for young and old readers alike! Jump in to Marvel action as you've never seen it before! All your favorite heroes are here: team up with Captain America, Black Panther, Black Widow, and more!