Murder by the Book — D.R. Meredith

Reference librarian Megan Clark has a passion for fictional crime -- but when she and her fellow book group members go from reading mysteries to solving them, they discover that real-life crime is more complex than the most puzzling whodunit...

In the midst of a bad drought, the shores of a local lake recede to reveal an old abandoned car. Megan is intrigued by the Depression-era jalopy and puzzled when her fellow amateur sleuths would rather get back to discussing Agatha Christie. Then bodies start popping up all over town, ritually murdered, and current crimes take precedence over old secrets.

It's Megan who discovers the corpses, making her the prime suspect. To clear her name, she'll need to find the killer -- who's obviously been boning up on Christie's novels. Is Megan reading too much into the clues, or could the culprit be a book club member?