the hour of one
`` I 'd rather you would n't go , Grace , '' she said . `` There is no telling what sort of a person this Retto is . His name sounds foreign . '' They talked for some time about the curious circumstances connected with the disappearance of the millionaire , and when a clock struck the hour of one , Larry arose with a start . `` I had no idea it was so late ! '' he exclaimed . `` I must hurry home , or mother will be worried .