ndow. Congratulate me, my dear Holmes, and tell me
that I have not disappointed you as an agent--that you do not regret
the confidence which you showed in me when you sent me down. All these
things have by one night's work been thoroughly cleared.

I have said "by one night's work," but, in truth, it was by two nights'
work, for on the first we drew entirely blank. I sat up with Sir Henry
in his rooms until nearly three o'clock in the morning, but no sound of
any sort did we hear except the chiming clock upon the stairs. It was
a most melancholy vigil and ended by each of us falling asleep in our
chairs. Fortunately we were not discouraged, and we determined to try
again. The next night we lowered the lamp and sat smoking cigarettes
without making the least sound. It was incredible how slowly the hours
crawled by, and yet we were helped through it by the same sort of
patient interest which the hunter must feel as he watches the trap into
which he hopes the game may wander. One struck, and two, and we had
almost for the second time given it up in despair when in an instant we
both sat bolt upright in our chairs with all our weary senses keenly on
the alert once more. We had heard the creak of a step in the passage.

Very stealthily we heard it pass along until it died away in the
distance. Then the baronet gently opened his door and we set out in
pursuit. Already our man had gone round the gallery and the corridor was
all in darkness. Softly we stole along until we had come into the other
wing. We were just in time to catch a glimpse of the tall, black-bearded
figure, his shoulders rounded as he tiptoed down the passage. Then he
passed through the same door as before, and the light of the candle
framed it in the darkness and shot one single yellow beam across the
gloom of the corridor. We shuffled cautiously towards it, trying every
plank before we dared to put our whole weight upon it. We had taken the
precaution of leaving our boots behind us, but, even so, the old boards
snapped and creaked beneath our tread. Sometimes it seemed impossible
that he should fail to hear our approach. However, the man is
fortunately rather deaf, and he was entirely preoccupied in that which
he was doing. When at last we reached the door and peeped through we
found him crouching at the window, candle in hand, his white, intent
face pressed against the pane, exactly as I had seen him two nights
before.

We had arranged no plan of campaign