two o'clock
Ruth and Bab had decided not to tell the other two `` Automobile Girls '' of their terrible uneasiness unless they actually needed the help of the younger girls to save the situation . Ruth and Bab did not wish to prejudice Mollie and Grace against Harriet if it were possible to spare her . But Ruth had told Bab that , at four o'clock , Harriet was determined to deliver the papers to Peter Dillon . At two o'clock , however , the two friends had found no way to influence Harriet to give up her mad project . Indeed , Harriet scarcely spoke to either of them , she was so bitterly angry at what she termed their interference . At three o'clock , Ruth and Barbara grew desperate . For , at three , Harriet Hamlin closed the door of her bedroom and commenced to dress for her engagement .