The bonded dead

In the twentieth novel in this series of detective/spy adventures, Milo March investigates the theft of millions of dollars in bonds and securities from a Wall Street brokerage house. Two young ladies who worked there as bonded secretaries are the prime suspects. When one of them turns up dead in the swamps outside Miami, Milo follows a trail that leads him to a rum-soaked race jockey with Syndicate connections. a beautiful but lonely blonde, ferocious Dobermans, and two gun-toting thugs with homicidal tendencies.