Damnant quod non intelligunt
If someone says they're too cynical to participate in a seance, does that mean they are actually leaving the door ajar for the supernatural because they recognize their cynicism might be getting in the way of results?

I have read awfully little by Peter Lovesey (only Bloodhounds I think), but I did like what I read of him, and as I had heard A Case of Spirits mentioned as an impossible crime once, I decided to pick it up. A Case of Spirits is a book in the Sergeant Cribb series by Lovesey, set in Victorian London and focusing on a policeman rather than a certain consulting detective. I had no problems starting with A Case of Spirits by the way, even though it's the sixth entry in the series. The series was also dramatized in the late 70s/early 80s (A Case of Spirits was also dramatized), so I assume that this series is actually well-known by people better informed than I, giving the exposure it got.
What I enjoyed most of this book was probably its setting. Victorian London is not a place unknown to mystery fans. Most people have some affinity with Sherlock Holmes, even if one's not too familiar with early detective fiction and there are even (fantastic!) Japanese stories set in the London of Jack the Ripper. And yet A Case of Spirits managed to entertain me in a way I had not foreseen. Partly because of the main topic: spiritualism. It's well known that spiritualism became a real hype in those times, with people trying to contact the Other World, and even Holmes' author Conan Doyle has been known to dabble quite a lot with spiritualism. The seance is not an unknown sight in mystery fiction, of course. I always think of Christie's Peril at End House and The Sittaford Mystery, though in those stories, no crimes happen during the seance, which is also the case in episodes 603-605 of Detective Conan. A good example of an impossible crime during seance would be one of the early cases from Tantei Gakuen Q, but A Case of Spirits has an interesting one too, as every suspect is in another section of the room than the victim, and it appears nobody could've tampered with the seat-contraption. It is a kind of impossible crime, though I thought the final solution somewhat lacking in power. I have to admit I had trouble visualizing what had happened exactly, and that usually doesn't help with the enjoyment of a plot. While there is some good clewing going on, other (essential) aspects are left rather vague in the story, making it hard for the reader to 1) come up with the complete solution themselves before it is revealed, and 2) still somewhat hard to really visualize after it's been revealed. Or maybe it's just me. One object for example is supposed to be used in a certain way, but I don't think the prior description of that object would've allowed for that until it is described as such in the solution. But other elements of the plot, for example the way Sergeant Cribb determines who's the culprit, are worked out much better, in an almost Queenian way of elimination. So some very good elements, some less so. The plot also involves some more minor mysteries, like the thefts, that do tie in with the main mystery eventually, but those are fairly light elements in comparison.
But I did really like the whole seance setting, as well as the grander Victorian setting. What I liked especially of the Victorian London in A Case of Spirits is actually that it's not emphasized at all! Yes, the story is set in Victorian London, explaining the spiritualism hype, but you don't get constant references to the historical setting, and in fact, you could easily forget one's reading a historical novel at times because of the lack of elements truly dating the story. It helped make the story feel more genuine and focused on the plot, rather than being dressed gaudily in Victorian dress. I already mentioned the game Dai Gyakuten Saiban already in passing, and there the Victorian setting is emphasized, but that is okay, as the mystery plots there are intricitly connected to objects and customs from those times. But not every single story set in Victorian London needs to be like that, so I think A Case of Spirits works great in respect as it is clearly set there, but does not overemphasizes its setting, with historical references cluttering the pages. You'll occasionally come across something that seems dated to the reader, but that is all, and it never screams in your face it's a historical novel.
The novel also has a light comedic tone to it by the way, which also helps make this a pleasant read. It's funny though, in terms of 'feeling', I tend to think that mystery fiction set in Victorian London (written contemporarily) has a tendecy to be 'dark and serious', but when I start to think of examples of titles I've actually read/seen/played, all I remember is fiction that's mildly comedic in tone at the very least.
Anyway, A Case of Spirits is a fairly short book, and I am afraid I have also very little to comment on it. It's a decent mystery novel with some elements that are truly great and some elements that could've been polished a bit better, but an entertaining story nonetheless. I for one definitely intend to read more of this series in the future.