The Sign of the Four is the second Sherlock Holmes book but it is one that introduces a few of his more well-known elements. If the first novel told us that he was a violinist, using the instrument and the music to relax, this one showed us the darker side of his nature.
How, when his keen mind is not stimulated, he has to find an artificial stimulus, a cocaine-based blend of narcotic. Does this make him an addict, or is he able to control his urges? It is an interesting question, but fascinating to see how his need to use the drug evaporates when he has a problem to solve.
It is also the novel where, perhaps, the most famous of Holmes’ quotes appears, “when you have eliminated the impossible, whatever remains, however improbable, must be the truth?”
It is also the Homes version of the ‘locked room mystery,’ where a body is discovered in a room, locked and sealed from the inside, a body obviously murdered.
The Sign of the Four is a short but enjoyable read, obviously a product of its time, but building on the characters in the first book and starting to cement the legend that would be one of those characters that steps beyond the printed page to become something so much bigger.
The story involves stolen treasure, lost treasure, murder, betrayal, a locked room and a desire for revenge. It is almost a delicate path that Holmes needs to follow. Linking events together to build a greater story. There is some decent period detail (although is it actually period detail, if it was written at the time, as it would just be detail….). The characters are good and strong, both Holmes and Watson spring of the page and cane easily perceived as real people, despite Holmes’ eccentricities. In fact, it could be argued that these very peculiarities are what make the detective so believable.
Despite being such a small novel, one originally produced serially, there is an unusual feeling of progress and movement through time. The story does not remain static imprisoning Holmes and Watson in the same situation. There is an (weak) element of romance as Watson falls hard for their client and ends up becoming engaged to her, and there are subtle hints that the injuries he suffered in the army are improving.
It would have been so easy for Conan Doyle to have set things up in the first book and kept them the same, instead life moves on.
The construct of the book is similar to the first, the case presented, the mystery unravelled, and then the backstory given at the end. But it seems to work a lot better this time around, probably because the backstory is a lot shorter and genuinely intriguing. It also serves as an insight into the way India was perceived in the past, with language and thoughts presented as they were at the time.
It is also great to see Holmes wanting to know how and why things came about after he has solved the case, rather than just solving it.
A definite case of being glad to revisit these works and appreciating them in a different way from when I read them 30 odd years ago!