Book excerpt: Introducing Marvel's all-new, never-before-seen heroes of the 1930s! With a new evil washing over an unsuspecting New York City, the Operative, the Aviatrix, the Surgeon, the Revenant and Achilles blast through dangers from blood-soaked mob warehouses to monster-infested mansions, and fight to blow the lid off a conspiracy that could bring the nation itself to its knees! Award-winning historical thriller novelist David Liss (Black Panther: The Man Without Fear) and acclaimed artist Patrick Zircher (Spider-Man Noir) weave an edge-of-your-seat and in-continuity adventure intertwined with America's most scandalous crimes! Before the Invaders...before the Twelve...who were the Mystery Men? COLLECTING: MYSTERY MEN 1-5