The portrait Carlyle has drawn of Cagliostro is the one most familiar to English readers. Now, though Carlyle’s judgments have in the main been upheld by the latest historians (who have had the advantage of information to which he was denied access), nevertheless, like everybody else, he made mistakes. In his case, however, these mistakes were inexcusable, for they were due, not to the lack of data, but to the strong prejudices by which he suffered himself to be swayed to the exclusion of that honesty and fairness he deemed so essential to the historian. He approached Cagliostro with a mind already biassed against him. Distasteful at the start, the subject on closer acquaintance became positively repugnant to him. The flagrant mendacity of the documentary evidence—which, discount it as he might, still left the truth in doubt—only served to strengthen his prejudice. It could surely be no innocent victim of injustice who aroused contempt so malevolent, hatred so universal. The mystery in which he masqueraded was alone sufficient to excite suspicion. And yet, whispered the conscience of the historian enraged at the mendacity of the witnesses he consulted, what noble ideals, what lofty aspirations misjudged, misunderstood, exposed to ridicule, pelted with calumny, may not have sought shelter under that mantle of mystery?

“Looking at thy so attractively decorated private theatre, wherein thou actedst and livedst,” he exclaims, “what hand but itches to draw aside thy curtain; overhaul thy paste-boards, paint-pots, paper-mantles, stage-lamps; and turning the whole inside out, find thee in the middle thereof!”

And suiting the action to the word, he clutches with an indignant hand at that metaphorical curtain; but in the very act of drawing it aside his old ingrained prejudice asserts itself. Bah! what else but a fraud can a Grand Cophta of Egyptian Masonry be? Can a Madame von der Recke, a Baroness d’Oberkirch, whose opinions at least are above suspicion, be other than right? The man is a shameless liar; and if he has been so shamelessly lied about in turn, he has only got what he deserved. And exasperated that such a creature should have been permitted even for a moment to cross the threshold of history, Carlyle dropped the curtain his fingers “itched to draw aside” and proceeded to empty all the vials of his wrath on Cagliostro.

In his brilliant essay, in the Diamond Necklace, in the French Revolution—wherever he meets him—he brands him as a “King of Liars,” a “Prince of Scoundrels,” an “Arch-Quack,” “Count Front of Brass-Pinch-beckostrum,” “Bubby-jock,” “a babbling, bubbling Turkey-cock,” et cetera. But such violence defeats its intention. When on every page the historian’s conscience is smitten with doubts that prejudice cannot succeed in stilling, the critical and inquisitive reader comes to the conclusion he knows less about the real Cagliostro at the end than he did at the beginning. He has merely seen Carlyle in one of his fine literary rages; it is all very interesting and memorable, but by no means what he wanted. As a matter of fact, in this instance Carlyle’s judgment is absolutely at sea; and the modern biographers of Cagliostro do not even refer to it.

Nevertheless, these writers have come pretty much to the same conclusion. M. Henri d’Alméras, whose book on Cagliostro is the best, speaking of the questionable evidence that so incensed Carlyle, declares “the historian, even in handling it with care, finds himself willy-nilly adopting the old prejudice. That is to say, every book written on Cagliostro, even under the pretext of rehabilitating him, can only be a book against him.” But while holding to the old conventional opinion, he considers that “a rogue so picturesque disarms anger, and deserves to be treated with indulgence.” D’Alméras pictures Cagliostro as a sort of clown, which is certainly the most curious view ever taken of the “Front of Brass,” and even more unjustifiable than Carlyle’s.

“What a good-natured, amusing, original rascal!” he exclaims. “The Figaro of Alchemy, more intelligent than Diafoirus, and more cunning than Scapin. And with what imperturbable serenity did he lie in five or six languages, as well as in a gibberish that had no meaning at all. To lie like that gives one a great superiority over the majority of one’s fellow-men. He did not lie because he was afraid to speak the truth, but because, as in the case of many another, falsehood was in him an excessive development of the imagination. He was himself, moreover, the first victim of his lies. By the familiar phenomenon of auto-suggestion, he ended by believing what he said from force of saying it. If he was successful, in a certain sense, he deserved to be.”

From all of which it may be gathered that whether Cagliostro is depicted as an Apostle of Light by his friends the occultists, or a rank impostor by his enemies, of whom Carlyle is the most implacable and d’Alméras the most charitably inclined, the real man has been as effectually hidden from view by prejudice as by the mystery in which he wrapped himself. But heavy though the curtain is that conceals him, it is perhaps possible for the hand that “itches” to draw it aside. As a matter of fact, no really honest attempt has ever been made to do so. It is true it is only a fleeting, somewhat nebulous, glimpse that can be obtained of this singular personality. There is, moreover, one condition to be observed. Before this glimpse can be obtained it is essential that some attempt should be made to discover, if possible, who Cagliostro was.

II

Considering that one has only to turn to the biographical dictionaries and encyclopedias to find it definitely asserted that “Count Cagliostro” was the best known of many aliases assumed by Giuseppe Balsamo, a Sicilian adventurer born in Palermo in 1743 or 1748, the above statement would appear to be directly contrary to recorded fact. For though biographical dictionaries and encyclopedias are notoriously superficial and frequently misleading, they are perhaps in this instance accurate enough for the purpose of casual inquiry, which is after all what they are compiled for. Indeed, this Balsamo legend is so plausible an explanation of the mystery of Cagliostro’s origin that, for lack of any other, it has satisfied all who are entitled to be regarded as authorities. The evidence, however, on which they have based their belief is circumstantial rather than positive.

Now circumstantial evidence, as everybody knows, is not always to be trusted. There are many cases on record of persons having been condemned on the strength of it who were afterwards found to be innocent. In this particular case, moreover, doubts do exist, and all “authorities” have admitted the fact. Those prejudiced against Cagliostro have agreed to attach no importance to them, those prejudiced in his favour the greatest. To the occultists they are the rock on which their faith in him is founded. Their opinion, however, may be ruled aside as untenable, for the doubts are entirely of a negative character, and suggest no counter-theory of identity whatever.