I really like this series. Amazon calls it the Commandant Camille Verhoeven trilogy. Alex appeared here in the US in 2013. I read it and was favorably impressed. This one was published here at the end of last year. However it was actually the first book of the trilogy. Published in France in 2006. That's the way often with translated works. They don't always follow the original publishing schedule. The third book, Camille, will come out here in May. According to Amazon. And looking up the author on Wikipedia it appears that there are at least two more Commandant Verhoeven novels that have not yet been translated into English. That's why I think it might be a series and not simply a trilogy. I hope so. It has some nice features. The setting is Paris. The characters are well drawn and interesting. This book has a really clever twist that I can't divulge because that would spoil the fun of discovering it. I can say that the novel is an homage to classic mystery fiction. And that it is fast paced. And the ending is very intense. It's not a classic happy ending I should point out. The posse does not ride in at the last second to save the day. I'm always on the lookout for a new mystery writer to follow and this one looks like a keeper.