Knock knock. Who’s there? It’s time to find out.
Blurb
Who is The Knock-Knock Man? A ghost, a killer, or simply a creepy urban legend?
This is the question that haunts Police officer Ali Davenport, months after the devastating case that changed her life. Now, after the death of her former colleague, Ernie, Ali must uncover the truth about a past that won’t stay buried.
Found in the disused office building where he worked as a night watchman, Ernie’s death seems to be an open-and-shut case. But not everyone is convinced. Wild stories abound about a supernatural presence that might have attached Ernie that fateful night. Reluctantly, Ali agrees to take on Ernie’s night shifts to debunk the story; an easy enough job, if you don’t believe in ghosts. But then Ali meets Will, a teenage ghost hunter who claims to have evidence on film…
As the mystery unfolds, Ali is forced to face the question of The Knock-Knock Man one last time. But what Ali doesn’t know is The Knock-Knock Man has already been watching her for a very long time…

Review
The Knock-Knock Man was well creepy. I mostly read it at night on the dark and I had to look over my shoulder a few times. The author has a knack of giving the reader chills and building up a blanket of mystery around the man and the myth. Personally, I found the book to be a good blend of a supernatural tale and a police drama.
As you can gather from the previous paragraph, it was definitely the supernatural element that grabbed me. However, as the story drew to a conclusion, I still found myself satisfied. The plot was wrapped up well and had a realistic ending. My only (minor) issue was that the pacing was a bit slow for the first half-to-three-quarters of the book. One other great thing about the ending was that I didn’t see it coming. There is nothing worse when reading a mystery as realising the ending halfway through.
This is my first book by Russell Mardell and I’d be interested in reading more. Start your journey with the author by picking up a copy of The Knock-Knock Man here.
I was sent a copy of this book in exchange for an honest review.