The Stranger Diaries - Elly Griffiths

                 Guilty Pleasure

I enjoyed the progression of this modern Gothic ghost story even though I was able to figure out the who in this mystery.

Clare teaches a creative writing class. She uses an old Gothic ghost story as one of her teaching aids. Then the events in the story start to happen to her.

Writing that is not hers appears in her private journal.  "Hello Clare, you don't know me".  

Goodreads  :

Clare Cassidy is no stranger to murder. A high school English teacher specializing in the Gothic writer R. M. Holland, she teaches a course on it every year. But when one of Clare’s colleagues and closest friends is found dead, with a line from R. M. Holland’s most famous story, “The Stranger,” left by her body, Clare is horrified to see her life collide with the storylines of her favourite literature.

To make matters worse, the police suspect the killer is someone Clare knows. Unsure whom to trust, she turns to her closest confidant, her diary, the only outlet she has for her darkest suspicions and fears about the case. Then one day she notices something odd. Writing that isn't hers, left on the page of an old diary: "Hallo, Clare. You don’t know me."