The Art of Theft by Sherry Thomas

Charlotte Holmes is again solving mysteries, this time her mission is somewhat different though as she works to steal back some letters that are very important to a friend of Mrs. Watson's. The letters are, of course, indelicate and could lead to her losing her place of importance in Indian society. Well, it turns out that the woman is willing to turn down the services of Sherlock Holmes when he doesn't react the way she expects. But Charlotte decides to help the woman anyway. So she, Mrs. Watson, Olivia, Olivia's beau Stephen, and Lord Ingram are all off to a ball where the costumes abound.
As good as the rest of the series, I wouldn't recommend starting here but I would recommend reading all of the books to get to here.

Four stars

Followed by Murder on Cold Street
This book came out October 15th
ARC kindly provided by Penguin Publishing Group and Edelweiss
Opinions are my own