"subtle enough and horrible enough. when a doctor does go wrong he is the first of criminals. he has nerve and he has knowledge. 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."