Robert Venditti is the New York Times best-selling author of The Homeland Directive and the sci-fi graphic novel series The Surrogates , the first installment of which was adapted into a feature film starring Bruce Willis and Ving Rhames. He also writes the graphic novel adaptations of Rick Riordan's bestselling Percy Jackson and the Olympians novels. His most recent projects include X-O Manowar , Hal Jordan and the Green Lantern Corps and The Flash .