about twelve o'clock
He was looking fixedly into the narrow quadrangle upon which the window opened . I shrank back unperceived , to pass the rest of the day in terror and despair . I went to my room early that night , but I was too miserable to sleep . At about twelve o'clock , feeling very nervous , I determined to call my cousin Emily , who slept , you will remember , in the next room , which communicated with mine by a second door . By this private entrance I found my way into her chamber , and without difficulty persuaded her to return to my room and sleep with me . We accordingly lay down together , she undressed , and I with my clothes on , for I was every moment walking up and down the room , and felt too nervous and miserable to think of rest or comfort . Emily was soon fast asleep , and I lay awake , fervently longing for the first pale gleam of morning , reckoning every stroke of the old clock with an impatience which made every hour appear like six .