three o'clock in the morning
As to Margaret , the suspense told on her exceedingly , as might have been expected in the case of a woman . She grew paler and paler still ; till at last about midnight , I began to be seriously alarmed about her . I got her to come into the library with me , and tried to make her lie down on a sofa for a little while . As Mr. Trelawny had decided that the experiment was to be made exactly at the seventh hour after sunset , it would be as nearly as possible three o'clock in the morning when the great trial should be made . Even allowing a whole hour for the final preparations , we had still two hours of waiting to go through , and I promised faithfully to watch her and to awake her at any time she might name . She would not hear of it , however . She thanked me sweetly and smiled at me as she did so ; but she assured me that she was not sleepy , and that she was quite able to bear up .