Along the moonlit decks of a gay luxury liner a pair of happy lovers stroll... and so does... THE DEADLIEST KILLER ON THE HIGH SEAS!
There's TERROR In Every Clue!
Triple murder for high stakes! A new high in mystery excitement! And laughs, too!
THE MASTER OF MYSTERY EXPOSES A GENIUS OF CRIME! (original print ad - all caps)
It's The HEIGHT of FRIGHT! (original poster)
DEATH FIRES THE STARTING GUN!...and you'll be breathless at the finish!
Death in the electric chair faces Charlie Chan... at the hands of a murderer twelve years dead!
Death rides the clouds
THE RIDDLE OF THE "KNIVES OF DEATH!" (original print ad - all caps)
it's Chan's most Spine-tingling mystery!