In the comics boom of the 1940s, a legend was born: the Green Turtle. He solved crimes and fought injustice just like the other comics characters. But this mysterious masked crusader was hiding something more than your run-of-the-mill secret identity: the Green Turtle was the first Asian American super hero. The comic had a short run before lapsing into obscurity, but Gene Luen Yang has revived this character in Shadow Hero, a new graphic novel that creates an origin story for the Green Turtle.