About nine o’clock
Palmer and Pritchard were among the heads of their profession . This man strikes even deeper , but I think , Watson , that we shall be able to strike deeper still . But we shall have horrors enough before the night is over ; for goodness ' sake let us have a quiet pipe and turn our minds for a few hours to something more cheerful . '' About nine o'clock the light among the trees was extinguished , and all was dark in the direction of the Manor House . Two hours passed slowly away , and then , suddenly , just at the stroke of eleven , a single bright light shone out right in front of us . `` That is our signal , '' said Holmes , springing to his feet ; `` it comes from the middle window . '' As we passed out he exchanged a few words with the landlord , explaining that we were going on a late visit to an acquaintance , and that it was possible that we might spend the night there .