The Mysterious Affair at Styles - by Agatha Christie
Excerpt 3

We strained and heaved together. The framework of the door was solid, and for a long time it resisted our efforts, but at last we felt it give beneath our weight, and finally, with a resounding crash, it was burst open.

We stumbled in together, Lawrence still holding his candle. Mrs. Inglethorp was lying on the bed, her whole form agitated by violent convulsions, in one of which she must have overturned the table beside her. As we entered, however, her limbs relaxed, and she fell back upon the pillows.

John strode across the room, and lit the gas. Turning to Annie, one of the housemaids, he sent her downstairs to the dining-room for brandy. Then he went across to his mother whilst I unbolted the door that gave on the corridor.

I turned to Lawrence, to suggest that I had better leave them now that there was no further need of my services, but the words were frozen on my lips. Never have I seen such a ghastly look on any man's face. He was white as chalk, the candle he held in his shaking hand was sputtering onto the carpet, and his eyes, petrified with terror, or some such kindred emotion, stared fixedly over my head at a point on the further wall. It was as though he had seen something that turned him to stone. I instinctively followed the direction of his eyes, but I could see nothing unusual. The still feebly flickering ashes in the grate, and the row of prim ornaments on the mantelpiece, were surely harmless enough.