"I thought it would tickle you some," he remarked grimly as he replaced the cheque in his pocket-book; "but I'll cash in if I don't make good," he added. "You know anything about submarines?" he demanded; directness was John Dene's outstanding characteristic.

"Er——" began the First Lord.

"You don't," announced John Dene with conviction.

"I'm afraid——" began Sir Lyster.

"Then you'd better send for someone who does," was the uncompromising rejoinder.

Sir Lyster looked at his visitor in surprise, hesitated a moment, then pressing a button said, as Mr. Blair appeared:

"Will you ask Admiral Heyworth to come here immediately?" Mr. Blair retired. "Admiral Heyworth," explained Sir Lyster, "is the Admiralty authority on submarines."

John Dene nodded. There was a pause.

"Wouldn't you like to ring up the Agent-General for Can'da and find out who I am?" suggested John Dene.

"I don't think that is necessary, Mr. Dene," was the reply. "We will hear what you have to say first. Ha, Heyworth!" as the Admiral entered, "this is Mr. John Dene of Toronto, who has come to tell us something about a discovery of his."