At the same time, Lord Ellingham was convinced that Esther had not stolen the diamonds; or that, if she had, Mr. Gordon had mistaken the hour of the day, if not the day itself, on which such theft was committed. Because Arthur remembered, beyond all possibility of error, that from two o'clock on the afternoon until near eleven o'clock at night, on the day specified by the diamond-merchant, Esther was engaged in visiting the house which her father had hired from him (Lord Ellingham), and which was situate about a mile beyond Finchley. Arthur himself accompanied Mr. de Medina and Esther on that occasion; and Esther was never absent from his sight, save perhaps for a few minutes at a time, during the interval above named.

There was a profound mystery somewhere: and though the Earl was not characterised by any feeling of impertinent curiosity, yet he longed to clear up the doubts and misgivings which had at length arisen in his mind. He entertained the greatest respect for Mr. de Medina, and—until now—the same sentiment towards Esther, whom he had hitherto looked upon as a model of purity, amiability, and innocence. He therefore felt grieved—vexed—disappointed—annoyed, for the honour of the human race, and especially for the credit of the female sex, to think it possible that he had been so grossly deceived in that beautiful Jewess.

He walked slowly along, the diamond-merchant by his side.

"Well, my lord," said the latter, at length breaking the protracted silence, "what is your opinion now?"

"I confess that I am bewildered," was the reply. "But I shall not judge hastily. In the meantime, I pray you so far to suspend your opinion upon the subject as to avoid the utterance of aught prejudicial to Miss de Medina's character; and if I succeed in fathoming this mystery, the fact of that young lady's guilt or innocence shall be duly communicated to you."

The diamond-merchant bowed respectfully, and departed in another direction; while Lord Ellingham continued his way towards Grafton Street.

CHAPTER XXI.
THE OATH.

Dr. Lascelles was at home, and immediately granted an audience to the Earl of Ellingham.

Popular physicians are potentates in their way, and access to them, save on matters of professional business, is frequently difficult.

But the doctor had taken a greater fancy to the young nobleman than he was ever known to entertain for any of his acquaintances; and he therefore received him as one who did not encroach on his very valuable time.