"You have won, monsieur," he said. "I will take up this case. But," and his face grew stern and he brought his fist down upon the table with a bang, "I shall follow it to the end now, be the consequences bitter as death to you."

"That is what I wish, monsieur," said Wethermill.

Hanaud locked up the slips of paper in his lettercase. Then he went out of the room and returned in a few minutes.

"We will begin at the beginning," he said briskly. "I have telephoned to the Depot. Perrichet, the sergent-de-ville who discovered the crime, will be here at once. We will walk down to the villa with him, and on the way he shall tell us exactly what he discovered and how he discovered it. At the villa we shall find Monsieur Fleuriot, the Juge d'instruction, who has already begun his examination, and the Commissaire of Police. In company with them we will inspect the villa. Except for the removal of Mme. Dauvray's body from the salon to her bedroom and the opening of the windows, the house remains exactly as it was."

"We may come with you?" cried Harry Wethermill eagerly.

"Yes, on one condition—that you ask no questions, and answer none unless I put them to you. Listen, watch, examine—but no interruptions!"

Hanaud's manner had altogether changed. It was now authoritative and alert. He turned to Ricardo.

"You will swear to what you saw in the garden and to the words you heard?" he asked. "They are important."

"Yes," said Ricardo.

But he kept silence about that clear picture in his mind which to him seemed no less important, no less suggestive.