ten o'clock
Mr. Keeler decided to stay . Roy wondered what the others would think if they knew that their guest was aware of what had recently befallen the family . He should most decidedly not have told all he had if he had foreseen what was coming . At ten o'clock Eva suggested that Mr. Keeler was probably tired from his journey , so the boys went up stairs with him . `` I 'll come down and lock up , '' Roy called back to his sisters . When he returned in a few minutes , leaving Rex talking bicycle with their guest , he found the girls standing in the library , over a large book which they had open on the table before them . `` Look there ! ''