about nine o'clock
He must be quiet for a couple of weeks yet and he 'll be all right . '' `` Then that means no trip for you to-morrow , '' said Mrs. Racer kindly . `` Never mind , I 'll amuse you while the boys are away pretending they are detectives , '' and she smiled at Paul . It was about nine o'clock when Frank happened to remember that he had left aboard their sloop _ Gull _ a book of adventures in which he was much interested . `` I 'm going down and get it , '' he announced . `` I wo n't be long . '' `` I 'll go with you , '' offered Andy , and the two started off toward the mooring place , which was near the big public pier .