(W) Grant Morrison (A/CA) Ed McGuinness. Written by Grant Morrison Art and cover by Ed McGuinness & Dexter Vines The earth-shaking conclusion to the 3-part story of the World's Greatest Super-Heroes by writer Grant Morrison and artists Ed McGuinness & Dexter Vines (SUPERMAN/BATMAN)! This action-packed issue finds the JLA and they literally are found! just in time to aid the Ultra-Marines in the mother of all battles versus Gorilla Grodd's guerilla warriors!