"What are you looking for, sir?" he said.

"Bloodstains."

Scotland Yard is concerned with the murderer, or murderers, of the mysterious Bernard Pitt. The dead man is discovered with a false identity, courtesy of the many forged papers and documents found with him.

The trail leads to France, where we discover why a French milliner chose to ride in a laundry basket, why the two American men are so interested in their wives' hat trimmings, and why it is so difficult for the French police to touch a criminal with high political connections. But the murder of Bernard Pitt was only an incident in the diabolical plot linking a network of criminals on both sides of the Channel.

The Milliner's Hat Mystery was first published in 1937. This new edition, the first for many decades, includes an introduction by crime novelist Martin Edwards, acclaimed author of genre history The Golden Age of Murder.

"Sir Basil Thomson is a past-master in the mysteries of Scotland Yard." Times Literary Supplement