"Peering through the gloom, I saw the vague outline of a man, a shade blacker than the blackness of the open door. He stood for an instant, and then he crept forward, crouching, menacing, into the room. […] He passed close beside us, stole over to the window, and very softly and noiselessly raised it for half a foot. As he sank to the level of this opening, the light of the street, no longer dimmed by the dusty glass, fell full upon his face. The man seemed to be beside himself with excitement. His two eyes shone like stars, and his features were working convulsively."
— Watson on Colonel Sebastian Moran, The Adventure of the Empty House

"Peering through the gloom, I saw the vague outline of a man, a shade blacker than the blackness of the open door. He stood for an instant, and then he crept forward, crouching, menacing, into the room. […] He passed close beside us, stole over to the window, and very softly and noiselessly raised it for half a foot. As he sank to the level of this opening, the light of the street, no longer dimmed by the dusty glass, fell full upon his face. The man seemed to be beside himself with excitement. His two eyes shone like stars, and his features were working convulsively."

— Watson on Colonel Sebastian Moran, The Adventure of the Empty House