“A licence plate from the car that hit him!” exclaimed Frost in mock excitement. “Now that could be a clue!” He sipped his tea. “It’s never been my luck to have a bloody licence plate left behind. I’m lucky if I find two witnesses who can agree on the colour of the car.” Then he paused, the mug quivering an inch from his lips, and whispered, “Listen!”

They listened to comparative silence. No music. No stamping.

Putting his mug down, Frost hurried over to the door that led to the canteen and pushed it open. Various voices called “Goodbye, sir… Thanks for coming, sir…” The Chief Constable and Mullett were leaving. Frost smiled to himself. The minute they left, he’d be up those stairs like a sailor with a complimentary ticket to a brothel.

Picking its moment, the phone rang. “Answer that, Collier,” Wells ordered. He wasn’t going to miss his chance with the Chief Constable again. But Collier was doing his doorman act, standing to attention, holding the main door open for the VIPs to pass through. Crawling little sod, thought Wells disgustedly.

Webster had skulked off to the office and Jack Frost had ducked out of sight as he always did when Mullett loomed into view. That left only Wells to answer the phone.

Mullett and the Chief Constable shimmered into the lobby in a haze of whisky fumes and expensive cigar smoke. The Chief was talking, Mullett was listening, nodding vigorously and murmuring, “Couldn’t agree with you more, sir,” whether he heard what the Chief was saying or not. At the door the Chief Constable paused, smiled approvingly at Collier, and said to Mullett, “You’ve got a smart man there, Superintendent.”

“Couldn’t agree with you more,” said Mullett, wondering why Sergeant Wells was looking daggers in his direction.