Missing: A Collection of Short Horror Stories

Robert

Robert was given to artist Robert Eugene Otto in 1906 by an unhappy servant who practised black magic. Throughout his childhood, Otto's parents heard him playing with and conversing with the doll, assuming he was replying to himself in a disguised voice. He is considered one of the most haunted objects in the world.

According to Wikipedia:

Neighbours claimed to have seen the doll moving from window to window when the family was out. Sometimes the doll would emit a terrifying giggle, and the Otto family caught glimpses of it running from room to room. In the night Eugene would scream, and when his parents ran to the room, they would find furniture knocked over and Eugene in bed, looking incredibly scared, telling them that "Robert did it!". In addition, guests claim to have seen Robert's expression change before their eyes and he often blinked.

When Eugene died in 1974, the doll was left in the attic until the house was bought again. The new family included a ten-year old girl, who became Robert's new owner. It was not long before the girl began screaming out in the night, claiming that Robert moved about the room and even attempted to attack her on multiple occasions. More than thirty years later, she still tells interviewers that the doll was alive and wanted to kill her.