eight
o'clock
And an hour later he sent the following telegram to Seraphine : `` Jewels found , thanks to you . We are very grateful . I have reconsidered the matter and accept your invitation for tonight . Will call at eight o'clock . '' -LRB- _ From Penelope 's Diary _ -RRB- _ New York January 31 , 1919 . _ An extraordinary thing happened on Monday night at Seraphine 's apartment . I must write down the details before they fade from my memory .