Ripped from the pages of the October, 1937 issue of Secret Agent X magazine comes this sensational full length novel, The Assassins' League!

When a wealthy arms manufacturer and a powerful gang lord both kill themselves -- when each had the world by the tail -- Secret Agent X looks into the suicides. What is the baffling, contradictory cause of their enigmatic deaths?

Worse yet, throughout the course of his investigation, X's amazing disguises fail him at every turn. A strange, beautiful girl possesses the power to see through his perfect impersonations.

Has the man of a thousand faces finally met his match?