I absolutely love the Detective's Daughter series! I have been eagerly awaiting the latest instalment and it didn't disappoint. This is the third book: it follows The Detective's Daughter (#1) and Ghost Girl (#2). The author's first novel A Kind of Vanishing is a prequel, of sorts, to the series. Events and characters from all three previous books are referenced in The Detective's Secret, but there are no spoilers.
I would highly recommend (from personal experience!) reading this series in sequence. A couple of the characters, their behaviours and their histories are very complex and are unlikely to make any sense unless you have read the previous books. I read Ghost Girl (#2) first and several aspects were extremely confusing; a lot of things didn't fall into place until I followed it with The Detective's Daughter (#1). It is not necessary to read A Kind of Vanishing to understand and enjoy The Detective's Daughter series, but it is interesting for some background trivia on a few minor characters and is worth checking out for its own merits.
The highlight of these books for me are the characters; they step right off of the page and into life. It's like looking at paintings which are so realistic you mistake them for photographs. The author doesn't just write ABOUT people, she places you right inside their head. Instead of the filtered and fully-developed output that is usually all we get to see of someone else's mind, this is like having full access to the raw, unedited footage. It's the small, uneventful moments – private observations, nascent thoughts and emotions – that make it especially effective. She is particularly accomplished at writing from a child's point of view; events and people are presented to the reader skewed through the prism of a child's inchoate perception.
These books are character-driven and my favourite character is Jack. Eccentric, intelligent, whimsical and led by signs and portents, he provides the perfect foil for the ordered, pragmatic Stella. In another author's hands, Stella might have come across as a cold fish, supercilious and judgemental; however, because we have access to these people's inner thoughts, we see their motivations and sympathise. Jack and Stella have one thing in common: they're both loners. Together, through Stella's cleaning business, they provide an unofficial detective service.
This particular book is perhaps a little slow in places and has a small handful of plot holes covered with flimsy explanations, but I can completely forgive it that, as the writing style in this series is just entrancing. Descriptive, atmospheric and surreal, it's completely unique to anything I've read before. There are no big surprises in this book (unlike the great twist halfway through The Detective's Daughter that I actually didn't see coming), but the gripping aspect is watching all the threads coming together, all the characters stories slowly merging. The reader is often privy to information that the characters are not, but this doesn't detract from the suspense.
I can't wait until 2016 for the next book!