The Slender Man

The Slender man, known by the Loa as The Tallyman.
First Appeared in Season 3. Died in Season 3.
Season 3
Terrorised The Fey Twins from their early teens years. As a debt to be collected on Loki's life he struck his mortal-realm home and killed his wife- the Fey Twins mother.
He haunted them with a message burnt into their front lawn 'One shall be taken and the other shall be left'.