The disadvantages of this mystery-mongering have been pointed out by Poe with his wonted acuteness in his criticism of 'Barnaby Rudge.' After retelling the plot of Dickens's contorted narrative, and after putting the successive episodes into their true sequence, Poe asserted that "the thesis of the novel may thus be regarded as based upon curiosity," and he declared that "every point is so arranged as to perplex the reader and whet his desire for elucidation." He insisted "that the secret be well kept is obviously necessary," because if it leaks out "against the author's will, his purposes are immediately at odds and ends." Then he remarked that altho "there can be no question that ... many points ... 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." In other words, the novelist has chosen to sacrifice to the fleeting interest which is evoked only by wonder the more abiding interest which is aroused by the clear perception of the inter-play of character and motive. Poe suggested that even 'Barnaby Rudge'--in spite of its author's efforts to keep secret the real springs of action which controlled the characters--if taken up a second time by a reader put into possession of all that had been concealed, would be found to possess quadruple brilliance, "a brilliance unprofitably sacrificed at the shrine of the keenest interest of mere mystery."