To be sure, the question of identity was readily determined, or should have been; but there were other points to be ascertained. Had the body been in any respect despoiled? Had the deceased any articles of jewelry about her person upon leaving home? If so, had she any when found? These are important questions utterly untouched by the evidence; and there are others of equal moment, which have met with no attention. We must endeavor to satisfy ourselves by personal inquiry. The case of St. Eustache must be re-examined. I have no suspicion of this person; but let us proceed methodically. We will ascertain beyond a doubt the validity of the affidavits in regard to his whereabouts on the Sunday. Affidavits of this character are readily made matter of mystification. Should there be nothing wrong here, however, we will dismiss St. Eustache from our investigations. His suicide, however, corroborative of suspicion, were there found to be deceit in the affidavits, is, without such deceit, in no respect an unaccountable circumstance, or one which need cause us to deflect from the line of ordinary analysis.

In that which I now propose, we will discard the interior points of this tragedy, and concentrate our attention upon its outskirts. Not the least usual error in investigations such as this is the limiting of inquiry to the immediate, with total disregard of the collateral or circumstantial events. It is the malpractice of the courts to confine evidence and discussion to the bounds of apparent relevancy. Yet experience has shown, and a true philosophy will always show, that a vast, perhaps the larger, portion of truth arises from the seemingly irrelevant. It is through the spirit of this principle, if not precisely through its letter, that modern science has resolved to calculate upon the unforeseen. But perhaps you do not comprehend me. The history of human knowledge has so uninterruptedly shown that to collateral, or incidental, or accidental events we are indebted for the most numerous and most valuable discoveries, that it has at length become necessary, in prospective view of improvement, to make not only large, but the largest, allowances for inventions that shall arise by chance, and quite out of the range of ordinary expectation. It is no longer philosophical to base upon what has been a vision of what is to be. Accident is admitted as a portion of the substructure. We make chance a matter of absolute calculation. We subject the unlooked for and unimagined to the mathematical formulœ of the schools.

I repeat that it is no more than fact that the larger portion of all truth has sprung from the collateral; and it is but in accordance with the spirit of the principle involved in this fact that I would divert inquiry, in the present case, from the trodden and hitherto unfruitful ground of the event itself to the contemporary circumstances which surround it. While you ascertain the validity of the affidavits, I will examine the newspapers more generally than you have as yet done. So far, we have only reconnoitred the field of investigation; but it will be strange, indeed, if a comprehensive survey, such as I propose, of the public prints will not afford us some minute points which shall establish a direction for inquiry.«

In pursuance of Dupin's suggestion, I made scrupulous examination of the affair of the affidavits. The result was a firm conviction of their validity, and of the consequent innocence of St. Eustache. In the meantime my friend occupied himself, with what seemed to me a minuteness altogether objectless, in a scrutiny of the various newspaper files. At the end of a week he placed before me the following extracts:

 

»About three years and a half ago, a disturbance very similar to the present was caused by the disappearance of this same Marie Rogêt from the parfumerie of Monsieur Le Blanc, in the Palais Royal. At the end of a week, however, she re- appeared at her customary comptoir, as well as ever, with the exception of a slight paleness not altogether usual. It was given out by Monsieur Le Blanc and her mother that she had merely been on a visit to some friend in the country; and the affair was speedily hushed up. We presume that the present absence is a freak of the same nature, and that, at the expiration of a week or, perhaps, of a month, we shall have her among us again.« – Evening Paper, Monday, June 23.49

»An evening journal of yesterday refers to a former mysterious disappearance of Mademoiselle Rogêt.