
"Cui bono?" in all the crack novels and elsewhere,—in those of Mrs. Gore, for example, (the author of "Cecil,") a lady who quotes all tongues from the Chaldaean to Chickasaw, and is helped to her learning, "as needed," upon a systematic plan, by Mr. Beckford,—in all the crack novels, I say, from those of Bulwer and Dickens to those of Bulwer and Dickens to those of Turnapenny and Ainsworth, the two little Latin words cui bono are rendered "to what purpose?" or, (as if quo bono,) "to what good." Their true meaning, nevertheless, is "for whose advantage." Cui, to whom; bono, is it for a benefit. It is a purely legal phrase, and applicable precisely in cases such as we have now under consideration, where the probability of the doer of a deed hinges upon the probability of the benefit accruing to this individual or to that from the deed's accomplishment. Now in the present instance, the question cui bono? very pointedly implicated Mr. Pennifeather. His uncle had threatened him, after making a will in his favour, with disinheritance. But the threat had not been actually kept; the original will, it appeared, had not been altered. Had it been altered, the only supposable motive for murder on the part of the suspected would have been the ordinary one of revenge; and even this would have been counteracted by the hope of reinstation into the good graces of the uncle. But the will being unaltered, while the threat to alter remained suspended over the nephew's head, there appears at once the very strongest possible inducement for the atrocity, and so concluded, very sagaciously, the worthy citizens of the borough of Rattle.
Mr. Pennifeather was, accordingly, arrested upon the spot, and the crowd, after some further search, proceeded homeward, having him in custody. On the route, however, another circumstance occurred tending to confirm the suspicion entertained. Mr. Goodfellow, whose zeal led him to be always a little in advance of the party, was seen suddenly to run forward a few paces, stoop, and then apparently to pick up some small object from the grass.