- MYSTERY WITHOUT A CLUE! SUSPENSE WITHOUT A LET-UP! ROMANCE WITHOUT AN EQUAL!
- WHAT phantom killer stalks his prey far above the clouds?
- WHO will be the next to go, as flaming fury rules the air lanes?
- WHY does the ray of doom single out the ace "Devil's Dozen"?
- THE WEIRDEST KILLER THAT EVER STALKED THE AIR LANES SPREADS TERROR FAR ABOVE THE CLOUDS!
- THRILLS WITHOUT A LET-UP! MYSTERY WITHOUT A CLUE! (original 1-sheet poster-all caps)
- PROPELLERS WHINE A HYMN OF HATE! MYSTERY RULES THE AIR (original six-sheet poster-all caps)
- TERROR RIDES THE AIR LANES! (original 3-sheet poster-all caps)
- In all the trackless desert above the clouds...there is no escape from the killer ray! (original poster)
- CAN YOU SOLVE THE MYSTERY OF THE PHANTOM RAY? (original print ad-all caps)
- He sees death at 10,000 feet...for the glory of the service...and a girl who is waiting for him. (print ad - Lubbock Evening Journal - Broadway Theatre - Lubbock, Texas - April 5, 1939)
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