Katherine Allison, Haunted AU

HD is better ghost around yeah so I had this crazy idea I wanted Dark Allison, and I do not know why but Katherine seemed the ideal person to support Allison, so here goes. you understand the story: Allison died, Katherine saved her by giving his blood, Allison is in transition, Lydia does not want to see her because she s afraid of her, so Allison approaches Katherine, they have a relationship between them, and Katherine encourages Allison to revenge against Lydia, so she does. . I got a strike, pl