What, then, was Etheridge's surprise to receive on the following day a reply from his friend, to the effect that Mr. Huckins had not only called upon the young ladies mentioned by him, but had made himself very much at home with them, having lunched, dined, and report even said breakfasted at their table.

This was startling news to Frank, especially after the letter he had written to Hermione, but he restrained himself from returning at once to Marston, as he was half tempted to do, and wrote her again, this time beseeching her in plain words to have nothing to do with so suspicious a person as he knew this Huckins to be, and advised her where to appeal for assistance in case this intolerable intruder was not willing to be shaken off. This letter brought the following answer:

Dear Mr. Etheridge:

Do not be concerned about us. Mr. Huckins will not trouble us unduly. Knowing his character, we are not likely to be misled by him, and it amuses us in our loneliness to have so queer and surprising a person as our guest.

Aunt Lovell is very sharp and keeps a keen eye upon him. He does not offend us except by his curiosity, but as that is excusable in an old man introduced into a household like ours, we try to make the best of it. When you come yourself we will dismiss the intruder.

Ever sincerely yours,

Hermione Cavanagh.

This letter was put very near Frank's heart, but it did not relieve him from his anxiety. On the contrary, it added to his fears, because it added to his mystification. What did Huckins want of the Misses Cavanagh, and what was the real reason for the indulgence they showed him? Was there a secret in their connection which he ought to know? He began to hasten his business and plan to leave the city again, this time for more than a single night.

Meantime, Dr. Sellick was not without his own secret doubts. Hide it as he would, he still cherished the strongest affection for the once dimpling, dainty, laughing-eyed Emma. Not a day passed but he had to combat a fervent desire to pass her gate, though when he yielded to this temptation he went by like an automaton, and never looked to right or left unless it was dark night. His was a proud soul and an exacting one. His self-esteem had been hurt, and he could not bring himself to make even the shadow of an advance towards one who had been the instrument of his humiliation. And yet he trembled when he thought of misfortune approaching her, and was almost as anxious as Frank about the presence in her house of the hypocritical and unprincipled Huckins. Had he listened only for a moment to the pleading of his better instincts, he would have gone to their door and lent his entreaties to those of Frank for a speedy dismissal of their unreliable guest; but the hour had not yet come for such a self-betrayal, and so he refrained, even while cursing himself for a pride which would not yield even at the impending danger of one so passionately beloved.

He however kept a man at watch upon the suspected stranger, a precaution which certainly did not amount to much, as the danger, if there was any, was not one which a detective stationed outside of the Misses Cavanagh's house would be able to avert.

Meanwhile Huckins, who was in his element, grew more insinuating and fatherly in his manner, day by day. To him this run of a house in which there lurked a mystery worth his penetrating, was a bliss that almost vied with that of feeling himself on the road to wealth. He pottered and poked about in the laboratory, till there was not a spot in the room or an article on the shelves which had not felt the touch of his hand; and Hermione and Emma, with what some might have thought a curious disregard of their father's belongings, let him do this, merely restricting him from approaching their own rooms. Possibly they felt as if some of the gloom of the place was lifted by the presence of even this evil-eyed old man; and possibly the shadows which were growing around them both, as Hermione labored day after day upon the history she was writing for her lover, made this and every other circumstance disconnected with the important theme they were considering, of little moment to them. However that may be, he came and went as he would, and had many sly hours in the long, dim laboratory and in the narrow twisted corridors at the back of the house, and what was worse and perhaps more disastrous still, on the stairs and in the open doorways with Doris, who had learned to toss her head and smile very curiously while busying herself in the kitchen, or taking those brief minutes of respite abroad, which the duties of the place demanded. And so the week passed, and Saturday night came.

It was seven o'clock, and train-time, and the blinds in the Cavanagh house guarding the front windows were tipped just a little. Behind one of these sat Emma, listening to the restless tread of Hermione pacing the floor in the room above. She knew that the all-important letter was done, but she could not know its contents, or what their effect would be upon the free, light-hearted man whose approach they were expecting. She thought she ought to know all that Hermione had been through in the year which had passed, yet the wild words uttered by her sister in their late memorable interview, had left a doubt in her mind which a week's meditations had only served to intensify. Yet the fears to which it had given rise were vague, and she kept saying to herself: "There cannot be anything worse than I know. Hermione exaggerated when she intimated that she had a secret bitterer than that we keep together. She has suffered so much she cannot judge. I will hope that all will go right, and that Mr. Etheridge will receive her explanations and so make her his everlasting debtor. If once she is made to feel that she owes him something, she will gradually yield up her resolve and make both him and me happy. She will see that some vows are better broken than kept, and——"

Here her thoughts were interrupted by the appearance of Hermione. The latter had not been able to walk off her excitement, and so had come down-stairs to bear the moments of suspense with her sister.

"I hope he will not stop," she cried. "I do not feel as if I could see him till——"