He was sitting disconsolately at his breakfast-table when the door was burst open and a square, stout man, with the blue, shaven face of a French comedian, flung himself into the room. Ricardo sprang towards the new-comer with a cry of delight.

"My dear Hanaud!"

He seized his visitor by the arm, feeling it to make sure that here, in flesh and blood, stood the man who had introduced him to the acutest sensations of his life. He turned towards his butler, who was still bleating expostulations in the doorway at the unceremonious irruption of the French detective.

"Another place, Burton, at once," he cried, and as soon as he and Hanaud were alone: "What good wind blows you to London?"

"Business, my friend. The disappearance of bullion somewhere on the line between Paris and London. But it is finished. Yes, I take a holiday."

A light had suddenly flashed in Mr. Ricardo's eyes, and was now no less suddenly extinguished. Hanaud paid no attention whatever to his friend's disappointment. He pounced upon a piece of silver which adorned the tablecloth and took it over to the window.

"Everything is as it should be, my friend," he exclaimed, with a grin. "Grosvenor Square, the Times open at the money column, and a false antique upon the table. Thus I have dreamed of you. All Mr. Ricardo is in that sentence."

Ricardo laughed nervously. Recollection made him wary of Hanaud's sarcasms. He was shy even to protest the genuineness of his silver. But, indeed, he had not the time. For the door opened again and once more the butler appeared. On this occasion, however, he was alone.

"Mr. Calladine would like to speak to you, sir," he said.

"Calladine!" cried Ricardo in an extreme surprise. "That is the most extraordinary thing." He looked at the clock upon his mantelpiece. It was barely half-past eight. "At this hour, too?"