"I suppose not," answered the other, and then the matter dropped. Chinston made an examination of Mark Frettlby, and when he had finished, his face was very grave, though he laughed at the millionaire's fears.

"You are all right," he said, gaily. "Action of the heart a little weak, that's all—only," impressively, "avoid excitement—avoid excitement."

Just as Frettlby was putting on his coat, a knock came to the door, and Madge entered.

"Brian is gone," she began. "Oh, I beg your pardon, doctor—but is papa ill?" she asked with sudden fear.

"No, child, no," said Frettlby, hastily, "I'm all right; I thought my heart was affected, but it isn't."

"Not a bit of it," answered Chinston, reassuringly. "All right—only avoid excitement."

But when Frettlby turned to go to the door, Madge, who had her eyes fixed on the doctor's face, saw how grave it was.

"There is danger?" she said, touching his arm as they paused for a moment at the door.

"No! No!" he answered, hastily.

"Yes, there is," she persisted. "Tell me the worst, it is best for me to know."