Doctor Vaughan had written that he could find his way with ease to Nurse Hagar's cottage, and he did.

Swinging himself down upon the dark end of the platform, when the evening train puffed into Bellair village, he crossed the track, and walked rapidly along the path that led in the direction of the cottage. He strode on until the light from the cottage window gleamed out upon the night, and his way led over the field. Half way between the stile and the cottage, a form, evidently that of a woman, appeared before him, and coming in his direction.

The figure came nearer, and a voice, that was certainly not Madeline's, said: "Is the gentleman going to old Hagar's cottage?"

"Are you Hagar?" replied Clarence, Yankee fashion.

"I am Hagar; and you are?"

"Doctor Vaughan."

"Then pass on, sir; the one you seek is there."

And the old woman waved her hand toward the light and hobbled on.

Clarence stared after her for a moment; but the darkness had devoured her, and he resumed his way toward the cottage.

In hastening to meet a friend we naturally have, in our mind, a picture. Our friend will look so, or so. Thus with Clarence Vaughan. Expecting to meet a pair of deep, sad, beautiful eyes, lifted to his own; to behold a fair forehead shadowed by soft, shining curls; judge of Clarence's surprise when the opened door revealed to him a small being of no shape in particular; a very black head of hair, surmounted by an ugly maid's cap; and a pair of unearthly, staring blue glasses.

Madeline had chosen to appear "in character" at this interview. She intended to keep her own personality out of sight, and she felt that she needed the aid and concealment that her disguise would afford. She would give Claire's schemes no vantage ground.

So Madeline Payne was carefully hidden away under the wig and pigment and padding; and CÉline Leroque courteseyed demurely as she held the door open to admit him, and said:

"Good evening, Monsieur le Docteur; you perceive I am here before you."

"Rather, I don't perceive it. You are here before me in a double sense of the word; yes. And I suppose you call yourself—"

"CÉline Leroque, at your service; maid-in-waiting to Miss Arthur, of Oakley."

Doctor Vaughan laughed.

"Well, won't you shake hands with an American of no special importance, CÉline Leroque?"

She placed her hand in his and then drew forward a chair.

"I hope you found no difficulty in getting out to-night?" he said, sitting down and looking at her with a half-amused, half-grave countenance.

"None whatever; I have been suffering with a sick-headache all day."

"And you can get in again unseen?"

"Easily; in the evening the servants are all below stairs."

"But what an odd disguise! Do they never question your blue glasses?"

"Not half so much as they would question the eyes without them. They believe my eyes were ruined by close application to fine needle-work. And then—" she pushed up the glasses a trifle, and he saw that the eyelid, and a line underneath the eye, were artistically rouged—"they all acknowledge that my eyes look very weak."

"I fancy they'll find those eyes have looked too sharply for them, by and by."

She laughed lightly. "I hope so."

Sitting there in her prim disguise, the girl felt glad to gaze upon him; felt as if, look as much as she would, she was gazing from a safe distance.

Dr. Vaughan came straight to the point of his visit, beginning by requesting a repetition of such portion of the facts she had discovered as related most particularly to the two men, Davlin and Percy. Then he made his suggestion. To his surprise it was a welcome one to the girl.

"That is just what I have had in mind," she said, thoughtfully. "After reflecting, I have changed my plans somewhat, and I don't see my way quite so clearly as before."

He was looking at her attentively, but asked no questions.

"Since I came from the city," she resumed, with some hesitation, "I have thought that I would be glad to talk again with all of you. But it won't do to incur the risk of more absences, for if I do not mistake the signs, things will be pretty lively up there," nodding in the direction of Oakley, "before many days. So perhaps we had better see what our two heads can develop in the way of counterplot, and you can make known the result to Olive."

"If your own invention will not serve, I fear mine will be at an utter loss. But you know how glad I shall be to share your confidence."

"My invention must serve," she said, firmly, and quite ignoring the latter clause of his speech; "and so must yours. You see, my plan before going to the city was a comparatively simple one. I intended to work my way into the confidence of Mrs. John Arthur. Failing in that, Hagar must have been reinstated, and then the denouement would have been easy: to get possession of specimens of the medicine prescribed for Mr. Arthur; to hunt down this sham doctor they are to introduce into the house; to show John Arthur the manner of wife he has; to make my own terms with him, and then expose and turn out the whole pack. But all this must be changed."

"Changed? And how?"

"I can't turn them out of Oakley. I must keep them there, every one of them, at any cost."

Dr. Vaughan looked puzzled. "We can't allow them to kill that old man, not even to vindicate poetical justice," he said, gravely.

"No; we can't allow just that. But don't you see, if we turn these people away now, we defeat a chief end and aim—the liberation of Philip Girard?"

"True."

"Well, this is why I have changed my plan."

He looked at her with an admiration that was almost homage.

"And you will give up your own vengeance, for the sake of Olive and her happiness?"

She laughed oddly. "Not at all. I only defer it, to make it the more complete. Now, listen to what I propose to do, and see if you can suggest anything safer or better."

And then she unfolded a plan that made Clarence Vaughan start in amazement, but which, after it was fully revealed, he could not amend nor condemn. He could see no other way by which all that they aimed at could be accomplished.

"Of course, the plan has its risks," concluded the girl. "But we could try no other scheme without incurring the same, or greater. And I believe that I shall not fail."

"I wish it were not necessary that you should undergo so much; think what it will be for you," gently.

"Oh, for me, ..." indifferently; "I shall be less of a spy, and more of an actress,—that is all."

"Then I shall set the detectives at work?"

"Immediately."

"Have you any further instructions, any clue, to give them?"

"Nothing; it is to be simply a research. Neither must know to what end the information is desired. It will be better to employ your men from different Agencies, so that one may not know of the other, or his business."

"And is there nothing more I can do?"

"Nothing, for the present. When once we get these men together, we shall all have our hands full. Then you can help me, perhaps, as I suggested."

"Well," sighing, and looking at his watch, "it's a strange business, and a difficult, for a young girl like you. But we are in your hands; you are worth a thousand such as I."

"Nonsense," she said, almost angrily. Then, abruptly, "When does Claire return to Baltimore?"

He started and flushed under her gaze. "I—I really don't know."

"Then, as my brother, I command you to know all about Claire. She is my special charge to you. And you are to tell her, from me, that I won't have her go away."

"Then I must do all in my power to detain her? Your command will have more effect than all of my prayers," he said, softly.

"Well, keep on reiterating my commands and your prayers, then; by and by she won't be able to distinguish the one from the other. What time is it?"

He smiled at the sudden change of tone and subject. "Half-past nine," he said.

While the words were on his lips, Old Hagar entered.

Clearly it was time to end the interview. Doctor Vaughan must be ready for the return train, which flew cityward soon, and CÉline Leroque must not be too long absent. So there were a few words more about their plans, a few courteous sentences addressed to Hagar by Doctor Vaughan, and then they separated.

The next day two men were at work,—following like sleuth hounds the trail on which they were put, unravelling slowly, slowly, the webs of the past that had been spun by the two men who were to be hunted down.

And now came a time of comparative dullness at Oakley. Even eventful lives do not always pace onward to the inspiring clang of trumpet and drum. There is the bivouac and the time of rest, even though sleeping upon their arms, for all the hosts that were ever marshalled to battle.

CÉline Leroque found life rather more dreary than she had expected during these days of inaction. After all, it is easier to be brave than to be patient. So, in spite of her courage and her self-sacrifice, she was restless and unhappy.

And she was not alone in her restlessness. It is curious to note what diverse causes produce the same effects. Cora Arthur was restless, very restless. The fruit of her labor was in her hands, but it was vapid, tasteless, unsatisfying. What her soul clamored for, was the opera, the contact of kindred spirits, the rush and whirl, the smoke and champagne, and giddiness of the city; the card-won gold, and painted folly that made the be-all and end-all of life to such as she.

She did not lose sight of the usefulness she trusted to find in CÉline Leroque, however. During these days of ennui and quietude, the two came to a very good understanding; not all at once, and not at all definite. Only, by degrees, Cora became convinced that CÉline Leroque cherished a very laudable contempt for her would-be-girlish mistress, and that she was becoming rather weary in her service. Once, indeed, the girl had said, as if unable to restrain herself, and while dressing Mrs. Cora's yellow hair—a task which she professed to delight in:

"Ah! madame, if only it was you who were my mistress! It is a pleasure to dress a beautiful mistress, but to be constantly at war against nature, to make an old one young—faugh! it is labor."

And Cora had been much amused and had held out a suggestion that, in case of any rupture between mistress and maid, the latter should apply to her.

But if existence was a pain to CÉline, and a weariness to Cora, it was anguish unutterable to Edward Percy. He would have been glad to put a long span of miles between his inamorata and himself had he not felt that, with Cora in the same house as his fair one, it were more discreet to be on the ground, and watch over his prey pretty closely. But to this man, who made love to every pretty woman as a child eats bon bons, the task of wooing where his eye was not pleased, his ear was not soothed, and his vanity not in the least flattered, was intensely wearisome.