The Dark Avenger hunts down members of a hidden criminal order in two superb 1932 pulp thrillers by Walter. B. Gibson. First, the Dark Avenger's investigation of the murderous Dr. Palermo leads him invade "The Death Tower" and discover the existence of a hooded secret society, in the early novel that introduced reporter Clyde Burke and The Shadow's autogyro. Then, when a wealthy businessman is killed, The Shadow must infiltrate and unmask "The Silent Seven" to solve the murder! This classic pulp collection features the original color pulp covers by George Rozen and interior illustrations by Tom Lovell with historical commentary by Will Murray.