12 o’clock
He paused -- so did Mrs. Tibbs . A knock -- a bustle -- a letter -- post-paid . ` T. I. presents compt . to I. T. and T. I. begs To say that i see the advertisement And she will Do Herself the pleasure of calling On you at 12 o'clock to-morrow morning . ` T. I. as To apologise to I. T. for the shortness Of the notice But i hope it will not unconvenience you . ` I remain yours Truly ` Wednesday evening . ' Little Mrs. Tibbs perused the document , over and over again ; and the more she read it , the more was she confused by the mixture of the first and third person ; the substitution of the ` i ' for the ` T. I. ; ' and the transition from the ` I. T. ' to the ` You . '