Rookie Detective Unwin is plunged deeper into the mystery of his missing boss, and struggles to apply the wisdom of the chapters in his Manual to a series of events that seem to make no sense at all - but an explanation is in sight when he is given the secret to Chapter 18.....now if only he can find it. Read by Toby Jones.

Somewhere in an unnamed, rainy city, Charles Unwin, a lowly but efficient clerk in a big detective agency, has found his world turned upside down when his detective boss, Travis Sivart, disappears.

Suddenly promoted to the role - Unwin's been forced out into the field for the first time in his life. Unprepared and untrained, armed only with his trusty umbrella and The Manual of Detection. His first mission is to find out what happened to his boss.

Abridged by Eileen Horne

Produced by Clive Brill

Made for BBC Radio 4 Extra by Pacificus Productions. Show less