“Costello and Anderson are two of my favourite fictional detectives, I can picture them in my head, hear their sharp barbed retorts and smile as they bounce perfectly off one another.” Sharon

Meet your next favourite Scottish detectives: DI Colin Anderson and DS Winifred ‘Freddie’ Costello.

Eric Callaghan is stabbed to death at a crowded Christmas Ice Show in front of his wife and daughter. He dies within minutes.

Murdered in plain sight. No clues, no witnesses, no known motive.

A week later, two bodies are discovered at a holiday cottage in a remote Highland glen. One in the kitchen, the other sprawled outside in the snow.

The only footprints found belong to the local police officer’s son who discovered the bodies.

The murdered couple swapped cottages with the family next door at the last minute. Who were the real targets?

Now Detectives Anderson and Costello must hunt down a killer who leaves no trace.

AN ELECTRIFYING SCOTTISH THRILLER WITH A HEART-STOPPING FINALE.

Fans of Ian Rankin, Val McDermid, Denise Mina, Matt Brolly, Carol Wyer, Joy Ellis, Stuart MacBride, Angela Marsons, Helen H. Durrant, J.D. Kirk, D.S. Butler and L.J. Ross will love this series.