(From the publisher):
Johnny Fortune meets Ava Gray at the races, and learns that her sister Gail has become involved with a crooked bookmaker, Harvey Chandos. When Johnny helps her to bring Gail home, he's soon up against Nugent, a giant of a man, and Madame Popocopolis, the brain behind Chandos. Popocopolis's plan, to kidnap millionaire's son Roy Belknap for ransom money is thwarted when she finds herself at the centre of a police dragnet - wanted for murder...
Original title: Dragnet
Genre: Fiction→ Crime and Mystery→ Crime/Caper