Mr. R. A. Shadwell reviewed Haunting Shades of Grey (The ORIGINAL Shades of Grey Series Book 4) Another Original Shades of Grey 5 January 2014 – I just love Mai Griffin’s stories. Once I start reading one of her books it is so difficult to put it down. The story interweaves storylines, brings in wonderful characters. Wonderful storytelling at its best. Can’t wait for the next book in the series. High recommended.