Now there can be no question that, by such means as these, many points which are comparatively insipid in the natural sequence of our digest, and which would have been comparatively insipid even if given in full detail in a natural sequence, are endued with the interest of mystery; but neither can it be denied that a vast many more points are at the same time deprived of all effect, and become null, through the impossibility of comprehending them without the key. The author, who, cognizant of his plot, writes with this cognizance continually operating upon him, and thus _writes to himself_ in spite of himself, does not, of course, feel that much of what is effective to his own informed perception, must necessarily be lost upon his uninformed readers; and he himself is never in condition, as regards his own work, to bring the matter to test. But the reader may easily satisfy himself of the validity of our objection. Let him _re-peruse_ “Barnaby Rudge,” and, with a pre-comprehension of the mystery, these points of which we speak break out in all directions like stars, and throw quadruple brilliance over the narrative—a brilliance which a correct taste will at once declare unprofitably sacrificed at the shrine of the keenest interest of mere mystery. The design of _mystery_, however, being once determined upon by an author, it becomes imperative, first, that no undue or inartistical means be employed to conceal the secret of the plot; and, secondly, that the secret be well kept. Now, when, at page 16, we read that “the body of _poor Mr. Rudge, the steward, was found_” months after the outrage, &c. we see that Mr. Dickens has been guilty of no misdemeanor against Art in stating what was not the fact; since the falsehood is put into the mouth of Solomon Daisy, and given merely as the impression of this individual and of the public. The writer has not asserted it in his own person, but ingeniously conveyed an idea (false in itself, yet a belief in which is necessary for the effect of the tale) by the mouth of one of his characters. The case is different, however, when Mrs. Rudge is repeatedly denominated “the widow.” It is the author who, himself, frequently so terms her. This is disingenuous and inartistical: accidentally so, of course. We speak of the matter merely by way of illustrating our point, and as an oversight on the part of Mr. Dickens.