It was five o'clock, it was raining, and the Slytherin common room was alive with the sound of silence. Then screaming. Then there was silence again. Then footsteps. Then total silence, as Tracy Davis stood in the door to the girls dormitories with blood on her hands and blood on her knees and far too much in her glassy eyes.

"Somebody get help."

It was a full fifteen minutes before Madame Pomfrey arrived, but although there were mutterings that she would've been faster if it had been a Gryffindor, nobody minded too much because she was twenty minutes too late.

It was a quarter past five, the rain had stopped, and Daphne Greengrass was pronounced dead at the scene.