five
o’clock
-- P.S. . If I do n't come , it will mean we shall not see each other again ; then I will let you know . ' Rudin turned the letter over in his hands , musing upon it , then laid it under his pillow , undressed , and lay down . For a long while he could not get to sleep , and then he slept very lightly , and it was not yet five o'clock when he woke up . The Avduhin pond , near which Natalya had fixed the place of meeting , had long ceased to be a pond . Thirty years before it had burst through its banks and it had been given up since then . Only by the smooth flat surface of the hollow , once covered with slimy mud , and the traces of the banks , could one guess that it had been a pond .