Thank you to Crooked Lane, NetGalley, and the author for the gifted ebook copy of A Three Book Problem!  All opinions in this review are my own.

In the seventh book of the Sherlock Holmes Bookshop Mystery series, Gemma Doyle is asked to work a Sherlock Holmes themed weekend getaway.  As the guests begin arriving, Gemma is confused to learn that many of them are not even Sherlock-enthusiasts.  Things become even more complicated when a poison dart sails through the library window.  Now Gemma must solve this three book problem.

It can be difficult to start a series on the seventh book, but I thought that A Three Book Problem introduces the main characters in the series and the roles they play well.  I want to read the other books in the series because I want to read more about the bookshop and town of West London.

Overall, this was a quick, cozy mystery.  I like when mysteries introduce all of the suspects in the beginning because it makes it seem like I could figure out who the murderer is before the end.  When it ends up being a character who isn't central to the story, the ending always seems less satisfying.  I look forward to reading about more of Gemma's adventures!