Inspector French and the Cheyne Mystery

From the Collins Crime Club archive, the second Inspector French novel by Freeman Wills Crofts, once dubbed ‘The King of Detective Story Writers’.
THE RETURN OF INSPECTOR FRENCH

When young Maxwell Cheyne discovers that a series of mishaps are the result of unwelcome attention from a dangerous gang of criminals, he teams up with a young woman who is determined to help him outwit them. But when she disappears, he finally decides to go to Scotland Yard for help. Concerned by the developing situation, Inspector Joseph French takes charge of the investigation and applies his trademark methods to track down the kidnappers and thwart their intentions …