Detective Comics (1937-) #523

Batman learns that Solomon Grundy is haunting the sewers of Gotham City with a gang of criminals. After stopping a riot at the site of a strike, Green Arrow notices two men who had fought each other acting chummy and tails one of them. He discovers that the man is part of a group that intends to throw Star City into chaos and then usurp leadership, with a plot created by their adviser, Lord Machiavelli. GA reveals his presence, whereupon Machiavelli calls upon his partner, the Executrix, to battle him with twin laser-torches.