Bill Bolton and the Winged Cartwheels

A young aviator named Bill Bolton and his companions stumble upon a defaced silver dollar bearing winged markings that draws them into a criminal mystery. They encounter burglars and arsonists, stage rescues, and pursue clues through chases, fights, and narrow escapes. Investigations carry them into scholarly and governmental circles where a professor and a Washington contact help unravel the scheme. Strange characters and violent confrontations, including the enigmatic Mizzentop and the use of heavy firearms, raise the stakes. The narrative emphasizes quick thinking, teamwork, and mechanical ingenuity as the friends work to expose and stop the conspiracy.