“It’s curious, to say the least, isn’t it?” he observed. There, in confidence, Charlie told the Minister of Marion’s friendship with Maud, of the strange and mysterious confession on the night of the disappearance, and her steadfast refusal to betray the girl’s secret.

Sir Charles paused and reflected.

“Political intrigue is at the bottom of this—depend upon it, Rolfe,” he said at last. “Petrovitch has enemies here, unscrupulous enemies, who would not hesitate to attempt his life. They fear that if he returns to power as the King had invited him, they will find themselves prisoners in the fortress—and that means death, as you know. When the Doctor acts, he acts boldly for the benefit of his country. He would make a clean sweep of his enemies once and for all.”

“Then you think they’ve anticipated this, and killed him in secret?” cried Rolfe.

“It is, I fear, quite possible,” was the diplomat’s reply.

“What causes you to believe this?”

“I possess secret knowledge.”

“Of a plot against him?”

“He was fully aware of it himself. That is why he lived in England,” the Minister replied.

“But, surely, if he knew this, he might have taken steps for his self-protection!” Rolfe exclaimed. “The fact that his furniture was spirited away to some unknown place makes it almost appear as though he was in accord with the conspirators.”