DEAD MEN DON'T LIE By J. Walt Layne X chases after wealthy politicians looking to finance enemy saboteurs and add to their ill-gotten gains. FACE TO FACE WITH AGENT LOKI By Andy Fix Secret Agent X battles his own counterpart, a German spy who is also a master of disguise. DEVIL IN THE DEEP BLUE SEA By Fred Adams Jr. From the early days of Secret Agent X's career, as he battles a sadistic U-Boat commander on the high seas. THE DEATH DUEL OF MADAM ROGUE By Frank Schildiner An old enemy from his past threatens to end Secret Agent X's career...and his life.