Carley looked amused. "Just like that," he said, commenting on this simple statement of a tall order.

"It won't be easy and it will probably cost them all they have, but there is no alternative."

"They could go away from here. Sell the house and settle down somewhere else. A year from now no one outside the Milford district will remember anything about this affair."

"They would never do that; and I shouldn't advise them to, even if they would. You can't have a tin can tied to your tail and go through life pretending it isn't there. Besides, it is quite unthinkable that that girl should be allowed to get away with her tale. It's a matter of principle."

"You can pay too high a price for your damned principles. But I wish you luck, anyhow. Are you considering a private inquiry agent? Because if you are I know a very good—"

Robert said that he had got an agent and that he was already at work.

Carley's expressive face conveyed his amused congratulation at this swift action on the part of the conservative Blair, Hayward, and Bennet.

"The Yard had better look to its laurels," he said. His eyes went to the street beyond the leaded panes of the window, and the amusement in them faded to a fixed attention. He stared for a moment or two and then said softly: "Well! of all the nerve!"

It was an admiring phrase, not an indignant one; and Robert turned to see what was occasioning his admiration.

On the opposite side of the street was the Sharpes' battered old car; its odd front wheel well in evidence. And in the back, enthroned in her usual place and with her usual air of faint protest at this means of transport, was Mrs. Sharpe. The car was pulled up outside the grocer's, and Marion was presumably inside shopping. It could have been there only a few moments or Ben Carley would have noticed it before, but already two errand boys had paused to stare, leaning on their bicycles with voluptuous satisfaction in this free spectacle. And even while Robert took in the scene people came to the doors of neighbouring shops as the news flew from mouth to mouth.