Was he making this excuse to spend the hours of her absence with Barbara Hare? The idea that it was so took firm possession of her mind, and remained there. Her face expressed a variety of feelings, the most prominent that of resentment. Mr. Carlyle saw it.

“You must not be vexed, Isabel. I assure you it is no fault of mine. It is important private business which cannot be put off, and which I cannot delegate to Dill. I am sorry it should have so happened.”

“You never return to the office in the evening,” she remarked, with pale lips.

“No; because if anything arises to take us there after hours, Dill officiates. But the business to-night must be done by myself.”

Another pause. Lady Isabel suddenly broke it. “Shall you join us later in the evening?”

“I believe I shall not be able to do so.”

She drew her light shawl around her shoulders, and swept down the staircase. Mr. Carlyle followed to place her in the carriage. When he said farewell, she never answered but looked out straight before her with a stony look.

“What time, my lady?” inquired the footman, as he alighted at Mrs. Jefferson’s.

“Early. Half-past nine.”

A little before eight o’clock, Richard Hare, in his smock-frock and his slouching hat and his false whiskers, rang dubiously at the outer door of Mr. Carlyle’s office. That gentleman instantly opened it. He was quite alone.