Smile: Detective John Gammon Crime Series, Book 4 (Unabridged‪)‬

We find Peak District Detective John Gammon spiraling toward depression with unsolved murders on his patch and his sister still missing. Gammon is going to need all his skills and detective cunning to get through this.

This dark, sinister thriller from author Colin J Galtrey will send shivers down your spine as you try to figure out who is really the killer or killers.