Bloody Mary

Another vengeful spirit, who might have been created when a pregnant woman was killed on her wedding night in front of a mirror.

Summoned by saying her name 3 times in front of a mirror... at midnight... with a lit candle... on a full moon... walking backwards down a staircase. No-one knows for sure as she seems to appear randomly.

Identifying one:
There can be any number of ways in which this thing manifests and kills. From liquefying the eyes to flaying her victims alive.

How to kill it:
Shatter the mirror she was summoned from. That will only stop her for a while, she can be summoned again, but since the way's of summoning her are not exact she may never re-appear.

Other Information:
The last one seen in the wild only killed people who had a guilty concience.