nine o'clock
It was not difficult to amuse the Secretary . He was as interested in details of the life on the Project as a boy of fifteen . Uncle Denny sent him into peals of laughter with an Irish version of Henderson 's stories , and Jim 's story of Iron Skull moved him deeply . It was drawing toward nine o'clock when once more Bill Evans ' rattle of gasolene artillery sounded before the door . A familiar voice called , `` Good-night , Bill ! '' and Penelope came into the room . The men jumped to their feet and Uncle Denny hurried to take her bag .