young clerk, but for a third person.
If exasperated, Cavaillon might refuse to divulge who this person was, who after all might not bear the name “Gypsy” given by the cashier. And, even if he did answer his questions, would he not lie?
After a mature reflection, Fanferlot decided that it would be superfluous to ask for a secret when it could be surprised. To quietly follow Cavaillon, and keep close watch on him until he caught him in the very act of handing over the letter, was but play for the detective.
This method of proceeding, moreover, was much more in keeping with the character of Fanferlot, who, being naturally soft and stealthy, deemed it due to his profession to avoid all disturbance or anything resembling evidence.
Fanferlot’s plan was settled when he reached the vestibule.
He began talking with an office-boy, and, after a few apparently idle questions, had discovered that the Fauvel bank had no outlet on the Rue de la Victoire, and that consequently all the clerks were obliged to pass in and out through the main entrance on the Rue de Provence.
From this moment the task he had undertaken no longer presented a shadow of difficulty. He rapidly crossed the street, and took up his position under a gateway.
His post of observation was admirably chosen; not only could he see everyone who entered and came out of the bank, but also commanded a view of all the windows, and by standing on tiptoe could look through the grating, and see Cavaillon bending over his desk.
Fanferlot waited a long time, but did not wax impatient, for he had often had to remain on watch entire days and nights at a time, with much less important objects in view than the present one. Besides, his mind was busily occupied in estimating the value of his discoveries, weighing his chances, and, like Perrette with her pot of milk, building the foundation of his fortune upon present success.
Finally, about one o’clock, he saw Cavaillon rise from his desk, change his coat, and take down his hat.
“Very good!” he exclaimed, “my man is coming out; I must keep my eyes open.”
The next moment Cavaillon appeared at the door of the bank; but before stepping on the pavement he looked up and down the street in an undecided manner.
“Can he suspect anything?” thought Fanferlot.
No, the young clerk suspected nothing; only having a commission to execute, and fearing his absence would be observed, he was debating with himself which would be the shortest road for him to take.
He soon decided, entered the Faubourg Montmartre, and walked up the Rue Notre Dame de Lorette so rapidly, utterly regardless of the grumbling passers-by whom he elbowed out of his way, that Fanferlot found it difficult to keep him in sight.
Reaching the Rue Chaptal, Cavaillon suddenly stopped, and entered the house numbered 39.
He had scarcely taken three steps in the narrow corridor when he felt a touch on his shoulder, and turning abruptly, found himself face to face with Fanferlot.
He recognized him at once, and turning very pale he shrank back, and looked around for means of escape.
But the detective, anticipating the attempt, barred the passage-way. Cavaillon saw that he was fairly caught.
“What do you want with me?” he asked in a voice tremulous with fright.
Fanferlot was distinguished among his confreres for his exquisite suavity and unequalled urbanity. Even with his prisoners he was the perfection of courtesy, and never was known to handcuff a man without first obsequiously apologizing for being compelled to do so.
“You will be kind enough, my dear monsieur,” he said, “to excuse the great liberty I take; but I really am under the necessity of asking you for a little information.”
“Information! From me, monsieur?”
“From you, my dear monsieur; from M. Eugene Cavaillon.”
“But I do not know you.”
“Ah, yes; you remember seeing me this morning. It is only about a trifling matter, and you will overwhelm me with obligations if you will do me the honor to accept my arm, and step outside for a moment.”
What could Cavaillon do? He took Fanferlot’s arm, and went out with him.
The Rue Chaptal is not one of those noisy thoroughfares where foot-passengers are in perpetual danger of being run over by numberless vehicles dashing to and fro; there were but two or three shops, and from the corner of Rue Fontaine occupied by an apothecary, to the entrance of the Rue Leonie, extended a high, gloomy wall, broken here and there by a small window which lighted the carpenters’ shops behind.
It was one of those streets where you could talk at your ease, without having to step from the sidewalk every moment. So Fanferlot and Cavaillon were in no danger of being disturbed by passers-by.
“What I wished to say is, my dear monsieur,” began the detective, “that M. Prosper Bertomy threw you a note this morning.”
Cavaillon vaguely foresaw that he was to be questioned about this note, and instantly put himself on his guard.
“You are mistaken,” he said, blushing to his ears.
“Excuse me, monsieur, for presuming to contradict you, but I am quite certain of what I say.”
“I assure you that Prosper never gave me anything.”
“Pray, monsieur, do not persist in a denial; you will compel me to prove that four clerks saw him throw you a note written in pencil and closely folded.”
Cavaillon saw the folly of further contradicting a man so well informed; so he changed his tactics, and said:
“It is true Prosper gave me a note this morning; but it was intended for me alone, and after reading it I tore it up, and threw the pieces in the fire.”
This might be the truth. Fanferlot feared so; but how could he assure himself of the fact? He remembered that the most palpable tricks often succeed the best, and trusting to his star, he said at hazard:
“Permit me to observe that this statement is not correct; the note was intrusted to you to give to Gypsy.”
A despairing gesture from Cavaillon apprised the detective that he was not mistaken; he breathed again.
“I swear to you, monsieur,” began the young man.
“Do not swear, monsieur,” interrupted Fanferlot; “all the oaths in the world would be useless. You not only preserved the note, but you came to this house for the purpose of giving it to Gypsy, and it is in your pocket now.”
“No, monsieur, no!”
Fanferlot paid no attention to this denial, but continued in his gentlest tone:
“And I am sure you will be kind enough to give it to me; believe me, nothing but the most absolute necessity—”
“Never!” exclaimed Cavaillon; and, believing the moment favorable, he suddenly attempted to jerk his arm from under Fanferlot’s, and escape.
