seven o'clock
HA , HA . '' In a corner was a drawing of a gallows , or what passes in the everyday mind for a gallows , and in the opposite corner an open book . `` You see , '' she said , `` it was mailed downtown late this afternoon . The hotel got it at seven o'clock . Marshall wanted to get a detective , but I thought of you . I knew -- you knew the boat , and then -- you had said -- '' `` Anything in all the world that I can do to help you , I will do , '' I said , looking at her . And the thing that I could not keep out of my eyes made her drop hers .