The Shadow also faces a wide variety of enemies, ranging from kingpins and mad scientists to international spies. Among his recurring foes are Shiwan Khan (seen in "The Golden Master", "Shiwan Khan Returns", "The Invincible Shiwan Khan" and "Masters of Death"); Dr. Rodil Moquino, the Voodoo Master ("The Voodoo Master", "The City of Doom" and "Voodoo Trail"); the Wasp ("The Wasp" and "The Wasp Returns"); and Benedict Stark, the Prince of Evil ("The Prince of Evil", "The Murder Genius", "The Man Who Died Twice" and "The Devil's Paymaster", all written by Theodore Tinsley). The only recurring criminal organization he fought was the Hand ("The Hand", "Murder for Sale", "Chicago Crime", "Crime Rides the Sea" and "Realm of Doom"), where he defeated one Finger of the organization in each book. In addition, the villain King Kauger from the Shadow story "Wizard of Crime" is the unseen mastermind behind the events of "Intimidation, Inc." The organization known as "The Silent Seven" was referred to in the previous title "The Death Tower". Villains Diamond Bert Farwell, Isaac Coffran, Steve Cronin, Spotter, and Birdie Crull all originated in the first two pulps and returned at least once.