The Patterson's Wall Phone

Urban Legend
A teenage girl is babysitting at night. The children have been put to bed upstairs and the babysitter is downstairs, watching TV. The phone rings, a man is laughing and telling her to check on the children. She at first dismisses the call. After a second call from the same man asking her to check on the children she asks who it is but the caller hangs up. Instead of checking on the children, the teenager ignores the call again. When the stranger calls back a third time the girl becomes worried and calls the police. They tell her that they will trace the next call so she hangs up and waits. After he calls again the police call back telling her the call is coming from inside the house. Rushing outside she runs into the police, one stays with her while the other checks out the house. The police officer returns telling her the calls were coming from upstairs where the man was killing each child and calling her afterwards to try to lure her to her death.

Origin
In 1950 a thirteen year old was babysitting a three year old when an intruder shattered a window and attacked her. When the parents arrived home they discovered both children had been murdered. The police had been called however due to short staffing the call was not able to be traced. To this day the crime remains unsolved.

Effects
Whoever you call, the caller is teleported to the room above the artifact, on roof if used in single story home.