Classic AVENGERS writer Roger Stern returns to Earth's Mightiest Heroes for an all-new adventure set during his time on the series - and with INFINITY WAR'S Ron Lim providing the art! The Siege of Avengers Mansion is over, and the Avengers are battered and in disarray! It's the worst time of all for Loki to discover a new source of mystic energies - one that connects to another classic villain and that will have dire consequences for all of reality unless those Avengers who remain standing are able to intercede!