Perferct suspense...perfect excitement...in Ellery Queen's most gripping story...
THE STANGE MYSTERY OF THE PLAYFUL MONKEY...THE FALLING DAGGER...THE FATEFUL ARROW!
Perfect fun...perfect thrills with your favorite sleuth of radio, fiction and the screen!
ELLERY QUEEN SOLVES THE PERFECT CRIME...TO BRING YOU PERFECT ENTERTAINMENT!
Strange mystery of the lovers' quarrel...the pet monkey...the falling dagger...the arrow!
Solve it...if you can! (original print ad)
Meet the Suspects in the Perfect Crime!
YOU'LL HAVE THE CRIME OF YOUR LIFE! He solves the crime of his career! (Print Ad- Bethany Republican-Clipper, ((Bethany, Mo.)) 27 August 1941)
SEE YOUR DASHING DETECTIVE OF FICTION, RADIO AND SCREEN IN HIS NEWEST AND MOST BAFFLING MYSTERY! (Print Ad-Tacoma Times, ((Tacoma, Wash.)) 3 October 1941)