This is the one -- the book that finally sold me on the John Rebus series (I say "finally" as if it's been a years' long effort, not just book 4). Everything worked for me here.
Rebus is trying to track down a rare book thief, and puts as much effort into that as you'd imagine most fictional detectives putting into it. Thankfully, it doesn't eat up so much of his time that he can't accompany others from his station -- including Chief Superintendent "Farmer" Watson -- on a raid of a brothel in a pretty nice part of town. Most of the men can't believe they're doing this raid, Rebus is chief among them. But, an order is an order, so they suit up and go in. While there, Brian Holmes finds a pretty popular MP in a room with one of the "employees."
This is MP is named Gregor Jack -- his background is pretty similar to Rebus' and the detective has always admired him (at least his public persona), and something just doesn't feel right about the way things went down with the raid and Jack's involvement (and exposure), so he starts checking in on Jack at home. There's something strange going on with Jack's wife, Elizabeth -- she's not at home, and Jack doesn't know if she even knows about the headlines about the raid and ensuing controversy. Rebus finds it a bit odd that someone like him would know so little about his wife's whereabouts, between his curiosity and interest in the MP, he starts poking around a bit -- which turns out to be fortuitous later on.
The ensuing mystery is pretty good -- especially when it becomes Rebus vs. the higher-ups as they narrow the list of suspects. I liked Rebus' method this time a little more than the previous books, it's a bit more methodical (even when he's mostly going with his gut, there's still thinking behind it). Could the mystery-solving -- and the novel as a whole -- be a bit meatier? Yeah, but it's not to sketchy on details. I just think that the Rebus novels would be better if they were Bosch-length.
In the previous books, I thought there were a couple of passages that were so well written that they lifted the quality of the whole book. I didn't come across anything in particular like that, not that the writing was bad, but there wasn't anything that jumped out at me. One very nice touch -- not in the language, but in the idea and how it worked -- was when Rebus was interviewing one of the Jacks' old friends in a mental hospital and the friend asks Rebus to touch the ground for him, since that's something he doesn't get to do any more. When Rebus does this, and when he tells the friend about it later -- just perfect.
I really would've liked more time with Gregor Jack and his staff -- I liked the interactions between Rebus and each of them, but it'd have been hard to pull off. Most of the rest of the suspect pool weren't terribly interesting. The friend in the hospital, isn't really a suspect (for obvious reasons), but he does give some insight into the case -- he was a well-written character and I liked the way that Rankin was able to work him into the story in a couple of ways.
Holmes reminds me of Luther's DS Justin Ripley (although I imagine Holmes as taller -- not sure there's a reason for that) -- I like the fact that he's sticking around, I expected him to vanish after his first appearance. I don't know if he and his girlfriend will stick around, but I'm enjoying him as an errand boy/accomplice/hindrance for Rebus. He's not the only returning face -- Gill Templer is a pretty significant factor in the off-the-clock Rebus story, which primarily centers around his growing (yet, I expect, doomed) relationship with a doctor.
Oh, I should mention that Rebus does find the book thief (with book obsessed readers like we have on this blog, you have to assure people that the books are okay), and it (naturally) has plays a role in the novel's greater story.
This tale of the determined and dogged detective who keeps on trying, even when he has no reason to, really worked for me -- clicked every one of my procedural buttons. I hope Rankin delivers more like this book.