“Suppose your theory correct; what happened after David’s subconscious memory was awakened?”

“As a psychologist, you are better able to answer that than I.”

“I am not interested in abstruse problems just now. I am here simply to find David.”

“Difficult, perhaps. I couldn’t find him before. But at least I have given you the clew.”

“Your clew doesn’t explain. I don’t know what to do with it.”

“A restatement of my theory may clear things up. Through a combination of certain circumstances, exerting upon him a peculiar influence, David is living again in an environment and through a set of experiences that belong to him only when he is in what we call a condition of secondary personality. Discover that environment—the same, I believe, as the one in which he was lost three years ago—and you will discover David.”

Leighton made no comment. He regarded Raoul with characteristic immobility. One gathered from his silence, however, that he was impressed with what he had just heard. Slowly pacing the length of the sala, he stopped before General Herran, who, through his ignorance of English, was in a quite helpless state of bewilderment at the turn the interview between the two men had taken.

“This young man will help us find Meudon,” said Leighton in his broken Spanish.

“He knows where he is?” asked Herran eagerly.

“He knows—something,” replied the savant with significant emphasis. “For one thing, General, those pistol shots you had with Meudon seem to have played the devil.”