Hathaway has a visitor from Robbie's past. What would the old Chief Inspector think of the Lewis-cub? Why would he Haunt James and what does this have to do with the old Devil's Disciple case?

Hathaway is late for a meeting and won't answer his phone. The reason James won't answer his phone is because he can't. Is Robbie coming undone or will he find something he lost a long time ago? T for gore.

Robbie plans a surprise for James and they have a falling out over it. James is visited by the ghost of Robbie Lewis and sees Halloween through Dickensesque eyes. How much of his dream will come true? Post series 8