two o'clock
The circle of light on the ceiling was still there , but it seemed less brilliant than at first . The green edging of the lamp-shade became like Maori greenstone rather than emerald . The sounds of the night without the house , and the starlight spreading pale lines along the edges of the window-cases , made the pall of black within more solemn and more mysterious . We heard the clock in the corridor chiming the quarters with its silver bell till two o'clock ; and then a strange feeling came over me . I could see from Miss Trelawny 's movement as she looked round , that she also had some new sensation . The new detective had just looked in ; we two were alone with the unconscious patient for another quarter of an hour . My heart began to beat wildly .