It is needless to say that the amateur detective worked with all his heart, and soul, and strength. His temperance was worthy of an anchorite; and, when he kept his senses about him, Crichton could be as patient and keen-scented as the most practised of legal bloodhounds. Before a week was over, he had collected evidence, conclusive and consecutive enough, to have convinced any Court of Honour, though perhaps it would not have secured a verdict from those free and enlightened Britons who will make a point of acquitting any murderer that does not chance to be caught "red-handed." Truly ours is a noble Constitution, and Trial by Jury is one of its fairest pillars; but I have heard a paragon Judge speak blasphemy thereanent. If the Twelve were allowed the French latitude of finding "extenuating circumstances," I believe the coolest on the Bench would go distraught, in helpless wrath and contempt.

Wyverne knew the shop that Mrs. Lenox patronized for papeterie. They ascertained there that a man answering exactly to the description of Knowles had called, one day in that autumn, and had asked for a packet of envelopes and note-paper, stating that he was commissioned to take them down in the country, and producing one of the lady's cards as a credential. The stationer particularly remembered it from the fact of the purchase having been paid for on the spot. Trifling as the amount was—only a few shillings—it was a curious infraction of Nina's commercial system, which was, as a rule, consistently Pennsylvanian. Crichton had certainly contracted no new friendships during his office servitude, but he had made a few acquaintances at some of the haunts frequented nightly by revellers of the clerkly guild. He worked one of these engines of information very effectually. Harding had more than once given him a cheque to a small amount, which he had got cashed through one of the subordinates of the bank, whom he had chanced to fraternize with at the "Cat and Compasses," or some such reputable hostel. At the expense of much persuasion, and a timely advance to the official, whose convivial habits were getting him into difficulties, Hugh was in a position to prove that Knowles had paid into his account, early in the January following that eventful Christmas, a cheque for £5000, signed by Lord Clydesdale. The money remained standing to his credit for some time, but had since been drawn out for investment. The dates of the composition of the fictitious letters corresponded exactly with the times at which Alan had received them.

Altogether, the case seemed tolerably clear, and a net of proof was drawn round Harding Knowles that it would puzzle even his craft to escape from.

I do not enter into the question whether the influences of high Civilization are sanctifying, or the reverse; but on some grounds, it surely ought to improve our Christianity, if it were only for the obstacles standing in the path of certain pagan propensities. One would think that even an infidel might see the folly of letting the sun go down on futile wrath. In truth, nowadays, the prosecution of a purely personal and private vengeance is not alone immoral in itself, but exceedingly difficult to carry out. You cannot go forth and smite your enemy under the fifth rib, wheresoever you may meet, after the simple antique fashion. You must lure him across the Channel before you can even proceed after the formula of the polite duello—supposing always that the adversary had not infringed the criminal code.

Alan Wyverne's nature was not sublime enough to admit a thought of forgiveness, now. Since he held the instruments of retaliation in his hand, he had never faltered for one moment in his vindictive purpose; but—how best to complete it—was a problem over which he brooded gloomily for hours, without touching the solution.


CHAPTER XXII.

AN OLD SCORE PAID.

It is needless to explain, that on Harding Knowles Wyverne's anger was chiefly concentrated. Clydesdale came in for his share; but, so far, it was difficult to establish the extent of the Earl's connection with the plot. When the Divine warning, "Vengeance is Mine," has once been ignored, very few men are so cold-blooded, as to exclude entirely from their plan of retribution, the old simple method of exacting it with their own right hand. As Alan sat thinking, a vision would rise before him, dangerously attractive: he saw a waste of sand-hills stretching for leagues along the coast of France; so remote from road or dwelling, that a shot would never be heard unless it were by a strange fishing-boat out at sea; so seldom traversed, that the body of a murdered man might lie there for days undiscovered, unless the gathering birds told tales; he saw the form of his enemy standing up in relief against the clear morning-light, within a dozen paces of the muzzle of his pistol. I fear it was more the impracticability of the idea than its sinfulness, which made Alan decide that it ought to be relinquished. Sometimes it needs no great casuistry to enable even the best-natured of us to give, in our own minds, a verdict of Justifiable Homicide. But upon calm consideration, it was about a million to one against Harding's being induced to risk himself in a duel, which he might guess would be to the death, where the chances would be heavily against him. As a rule, forgers don't fight.

There were great difficulties too, about a public exposure—so great that Alan never really entertained the idea for a moment. He would just as soon have thought of publishing a scurrilous libel about those whom he loved best, as of allowing their names to be paraded for the world's amusement and criticism.