Puzzled that gentleman certainly was, yet he heartily agreed. If the Van Roon was not produced within the next four and twenty hours, a warrant would be issued.

“Where is the hussy? That’s what we want to know,” said the old man. “Tell us what has become of her.”

Frankly William did not know. He was not believed, at any rate, by his master who by now was deeper than ever in the coil of his own crookedness. As for the two dealers who, between them, had contrived, as they thought, to acquire one of the world’s treasures for an absurd sum, they did not know what to think. The comedy they were performing at the instance of S. Gedge Antiques was designed to bemuse the assistant, yet both men had an uneasy feeling at the back of their minds that master and man were engaged in a piece of flapdoodle for their private benefit. If so, the old man was a fool as well as a rogue, and the young one was a rogue as well as a fool. Scant was the comfort to be got out of this reflection. They seemed very far from the goal on which their hearts were set; and impatience of such methods was just beginning to show itself in the bearing of Messrs. Duponnet and Thornton when the affair took a new and remarkable turn.

LIII

A tall man, quietly dressed, yet wearing a silk hat and an eyeglass, with a pleasant air of authority, came into the shop. For a moment he stood by the door, a rather cool gazed fixed upon the group of four; and then, an odd mingling of alertness and caution in his manner, he advanced to the proprietor.

“May I have a word with you,” said the visitor, with an air of apology for the benefit of the others whom he included in a smile which expressed little.

“Certainly you may, Sir Arthur,” said S. Gedge Antiques, an odd change coming into his tone. Taken by surprise, the old man had been slow to reckon up the situation. He was not able to detach himself from the group, and lead the rather unwelcome visitor out of earshot before that gentleman had divulged the business which had brought him there.

“You must be anxious about your niece, Mr. Gedge,” said Sir Arthur, who saw no need for secrecy.

The old man was very anxious indeed.

“You’ve heard from the Hospital, of course?”