"You saw us together?" exclaimed Wethermill. "Then you can understand how infamous the suggestion is."

But Ricardo had seen the girl half an hour before he had seen her with Harry Wethermill. He could not but vividly remember the picture of her as she flung herself on to the bench in the garden in a moment of hysteria, and petulantly kicked a satin slipper backwards and forwards against the stones. She was young, she was pretty, she had a charm of freshness, but-but-strive against it as he would, this picture in the recollection began more and more to wear a sinister aspect. He remembered some words spoken by a stranger. "She is pretty, that little one. It is regrettable that she has lost."

Mr. Ricardo arranged his tie with even a greater deliberation than he usually employed.

"And Mme. Dauvray?" he asked. "She was the stout woman with whom your young friend went away?"

"Yes," said Wethermill.

Ricardo turned round from the mirror.

"What do you want me to do?"

"Hanaud is at Aix. He is the cleverest of the French detectives. You know him. He dined with you once."

It was Mr. Ricardo’s practice to collect celebrities round his dinner-table, and at one such gathering Hanaud and Wethermill had been present together.

"You wish me to approach him?"