I thought at first that writing books about Sherlock Holmes and his much-younger wife was gimmicky but that opinion changed pretty quickly. The Language of Bees is a well-written book that isn't just riding on the coat-tails of Sir Arthur Conan Doyle's books. This book is the 9th in the series. The first is the Beekeeper's Apprentice and I would suggest starting there although I enjoyed this book without having read the others.
Mary Russell and her partner Sherlock Holmes have just returned to England after several months abroad. As they approach their home, there is someone waiting outside to speak to them who turns out to Holmes' son Damian whom they haven't seen for 5 years. His wife and daughter have disappeared and he is asking for their help to find them.
It turns out that Mary Russell is just as tenacious and dedicated an investigator as her husband. She gets herself into some very interesting situations and manages to deftly get back out.
I really enjoyed this book despite the ending (to be continued...). I thought the characters were interesting and the plot was intriguing. There was very little profanity and only a little discussion about sex but it was definitely an adult novel with the plot revolving a religious cult that uses human sacrifice. Rated PG-13.