ON a certain evening in the month of September (at that period of the month when Arnold and Blanche were traveling back from Baden to Ham Farm) an ancient man—with one eye filmy and blind, and one eye moist and merry—sat alone in the pantry of the Harp of Scotland Inn, Perth, pounding the sugar softly in a glass of whisky-punch. He has hitherto been personally distinguished in these pages as the self-appointed father of Anne Silvester and the humble servant of Blanche at the dance at Swanhaven Lodge. He now dawns on the view in amicable relations with a third lady—and assumes the mystic character of Mrs. Glenarm’s “Friend in the Dark.”

Arriving in Perth the day after the festivities at Swanhaven, Bishopriggs proceeded to the Harp of Scotland—at which establishment for the reception of travelers he possessed the advantage of being known to the landlord as Mrs. Inchbare’s right-hand man, and of standing high on the head-waiter’s list of old and intimate friends.

Inquiring for the waiter first by the name of Thomas (otherwise Tammy) Pennyquick, Bishopriggs found his friend in sore distress of body and mind. Contending vainly against the disabling advances of rheumatism, Thomas Pennyquick ruefully contemplated the prospect of being laid up at home by a long illness—with a wife and children to support, and with the emoluments attached to his position passing into the pockets of the first stranger who could be found to occupy his place at the inn.

Hearing this doleful story, Bishopriggs cunningly saw his way to serving his own private interests by performing the part of Thomas Pennyquick’s generous and devoted friend.

He forthwith offered to fill the place, without taking the emoluments, of the invalided headwaiter—on the understanding, as a matter of course, that the landlord consented to board and lodge him free of expense at the inn. The landlord having readily accepted this condition, Thomas Pennyquick retired to the bosom of his family. And there was Bishopriggs, doubly secured behind a respectable position and a virtuous action against all likelihood of suspicion falling on him as a stranger in Perth—in the event of his correspondence with Mrs. Glenarm being made the object of legal investigation on the part of her friends!

Having opened the campaign in this masterly manner, the same sagacious foresight had distinguished the operations of Bishopriggs throughout.

His correspondence with Mrs. Glenarm was invariably written with the left hand—the writing thus produced defying detection, in all cases, as bearing no resemblance of character whatever to writing produced by persons who habitually use the other hand. A no less far-sighted cunning distinguished his proceedings in answering the advertisements which the lawyers duly inserted in the newspaper. He appointed hours at which he was employed on business-errands for the inn, and places which lay on the way to those errands, for his meetings with Mrs. Glenarm’s representatives: a pass-word being determined on, as usual in such cases, by exchanging which the persons concerned could discover each other. However carefully the lawyers might set the snare—whether they had their necessary “witness” disguised as an artist sketching in the neighborhood, or as an old woman selling fruit, or what not—the wary eye of Bishopriggs detected it. He left the pass-word unspoken; he went his way on his errand; he was followed on suspicion; and he was discovered to be only “a respectable person,” charged with a message by the landlord of the Harp of Scotland Inn!

To a man intrenched behind such precautions as these, the chance of being detected might well be reckoned among the last of all the chances that could possibly happen.

Discovery was, nevertheless, advancing on Bishopriggs from a quarter which had not been included in his calculations. Anne Silvester was in Perth; forewarned by the newspaper (as Sir Patrick had guessed) that the letters offered to Mrs. Glenarm were the letters between Geoffrey and herself, which she had lost at Craig Fernie, and bent on clearing up the suspicion which pointed to Bishopriggs as the person who was trying to turn the correspondence to pecuniary account. The inquiries made for him, at Anne’s request, as soon as she arrived in the town, openly described his name, and his former position as headwaiter at Craig Fernie—and thu s led easily to the discovery of him, in his publicly avowed character of Thomas Pennyquick’s devoted friend. Toward evening, on the day after she reached Perth, the news came to Anne that Bishopriggs was in service at the inn known as the Harp of Scotland. The landlord of the hotel at which she was staying inquired whether he should send a message for her. She answered, “No, I will take my message myself. All I want is a person to show me the way to the inn.”

Secluded in the solitude of the head-waiter’s pantry, Bishopriggs sat peacefully melting the sugar in his whisky-punch.

It was the hour of the evening at which a period of tranquillity generally occurred before what was called “the night-business” of the house began. Bishopriggs was accustomed to drink and meditate daily in this interval of repose. He tasted the punch, and smiled contentedly as he set down his glass. The prospect before him looked fairly enough. He had outwitted the lawyers in the preliminary negotiations thus far. All that was needful now was to wait till the terror of a public scandal (sustained by occasional letters from her “Friend in the Dark”) had its due effect on Mrs. Glenarm, and hurried her into paying the purchase-money for the correspondence with her own hand. “Let it breed in the brain,” he thought, “and the siller will soon come out o’ the purse.”

His reflections were interrupted by the appearance of a slovenly maid-servant, with a cotton handkerchief tied round her head, and an uncleaned sauce-pan in her hand.

“Eh, Maister Bishopriggs,” cried the girl, “here’s a braw young leddy speerin’ for ye by yer ain name at the door.”

“A leddy?” repeated Bishopriggs, with a look of virtuous disgust. “Ye donnert ne’er-do-weel, do you come to a decent, ‘sponsible man like me, wi’ sic a Cyprian overture as that? What d’ye tak’ me for? Mark Antony that lost the world for love (the mair fule he!)? or Don Jovanny that counted his concubines by hundreds, like the blessed Solomon himself? Awa’ wi’ ye to yer pots and pans; and bid the wandering Venus that sent ye go spin!”

Before the girl could answer she was gently pulled aside from the doorway, and Bishopriggs, thunder-struck, saw Anne Silvester standing in her place.

“You had better tell the servant I am no stranger to you,” said Anne, looking toward the kitchen-maid, who stood in the passage staring at her in stolid amazement.

“My ain sister’s child!” cried Bishopriggs, lying with his customary readiness. “Go yer ways, Maggie. The bonny lassie’s my ain kith and kin. The tongue o’ scandal, I trow, has naething to say against that.—Lord save us and guide us!” he added In another tone, as the girl closed the door on them, “what brings ye here?”

“I have something to say to you. I am not very well; I must wait a little first. Give me a chair.”

Bishopriggs obeyed in silence. His one available eye rested on Anne, as he produced the chair, with an uneasy and suspicious attention. “I’m wanting to know one thing,” he said. “By what meeraiculous means, young madam, do ye happen to ha’ fund yer way to this inn?”

Anne told him how her inquiries had been made and what the result had been, plainly and frankly. The clouded face of Bishopriggs began to clear again.

“Hech! hech!” he exclaimed, recovering all his native impudence, “I hae had occasion to remark already, to anither leddy than yersel’, that it’s seemply mairvelous hoo a man’s ain gude deeds find him oot in this lower warld o’ ours. I hae dune a gude deed by pure Tammy Pennyquick, and here’s a’ Pairth ringing wi the report o’ it; and Sawmuel Bishopriggs sae weel known that ony stranger has only to ask, and find him. Understand, I beseech ye, that it’s no hand o’ mine that pets this new feather in my cap. As a gude Calvinist, my saul’s clear o’ the smallest figment o’ belief in Warks. When I look at my ain celeebrity I joost ask, as the Psawmist asked before me, ‘Why do the heathen rage, and the people imagine a vain thing?’ It seems ye’ve something to say to me,” he added, suddenly reverting to the object of Anne’s visit. “Is it humanly possible that ye can ha’ come a’ the way to Pairth for naething but that?”

The expression of suspicion began to show itself again in his face. Concealing as she best might the disgust that he inspired in her, Anne stated her errand in the most direct manner, and in the fewest possible words.

“I have come here to ask you for something,” she said.

“Ay? ay? What may it be ye’re wanting of me?”

“I want the letter I lost at Craig Fernie.”

Even the solidly-founded self-possession of Bishopriggs himself was shaken by the startling directness of that attack on it. His glib tongue was paralyzed for the moment. “I dinna ken what ye’re drivin’ at,” he said, after an interval, with a sullen consciousness that he had been all but tricked into betraying himself.

The change in his manner convinced Anne that she had found in Bishopriggs the person of whom she was in search.

“You have got my letter,” she said, sternly insisting on the truth. “And you are trying to turn it to a disgraceful use. I won’t allow you to make a market of m............