Her late husband.
The same time every day; he doesn't appear to know what has happened to him and Holly can't bring herself to tell him. She isn't even sure if it really is him calling or whether it's all in her tormented mind. Especially seeing as the calls only happen when she is alone. Is it all in her head, has she gone mad, or is heaven really calling?
From the author of "The Missing Years of Thomas Pritchard". This is the softer side to horror author Matt Shaw.