“I think not, at least not yet. Your calling to see her would arouse her suspicion, because I have asked her once or twice to let me ask a doctor to call, and each time she has strongly opposed the suggestion.”

“Is she unhappy at the thought of her approaching marriage?”

“Indeed no! She is terribly in love. In fact, I tremble to think what would happen to her if any mishap befell Captain Preston. So strongly do I feel on that point that sometimes I wonder if she has some secret cause to believe that some mishap may befall him. He seems greatly worried too.”

“So I understand.”

“Why, who told you?”

“His great friend, Blenkiron.”

“Well, Doctor Johnson, what do you suggest?”

For a minute the doctor did not answer.

“You say the change in Miss Hagerston dates from Henley Regatta?” he said at last.

“From the morning of the third day. She went to the Regatta on the second day only. She went with Captain Preston.”