

Jim and Frederick go to a spiritualist seance as part of their work as private detectives. Mackinnon tells them that he believes that the man knows that he (Mackinnon) knows about the murder, and is therefore terrified for his life. Jim takes Mackinnon to Frederick and Frederick's uncle Webster at their photography shop/private investigations office in Burton Street where Mackinnon proves to Jim, Webster and Frederick that he has spiritual abilities (he can see things having to do with an object by touching it) and tells them of a murder he saw by touching a man's cigar case. Sally's friend Jim Taylor (now working as a stagehand in a local theatre) helps stage magician Alistair Mackinnon escape two men Mackinnon is certain plan to kill him. We also learn that Sally has a huge but lovable black dog called Chaka and that Frederick Garland (Sally's friend from The Ruby in the Smoke) is in love with Sally but that she is unsure of her feelings and so continuously refuses to decide on whether to marry him. Sally vows to get the money back and investigate Anglo-Baltic, the company Miss Walsh lost all her money from. A Miss Walsh walks into the offices of Sally Lockhart's office (Sally is now working as a financial consultant) about some poor business advice Sally gave her as a result Miss Walsh has lost her life savings.

This second Sally Lockhart mystery takes place in late 1878, six years after the events of The Ruby in the Smoke. It was originally published as The Shadow in the Plate. The Shadow in the North ( 1986) is a book by the English author Philip Pullman.
