From the New York Times bestselling author of A Cat in the Stacks mystery series, a novel about murder, rivalries and playing the right hand...

Bridge tips included!

Young widow Emma Diamond has been learning bridge to refocus her grief. So when best friends and bridge partners Sophie and Marylou decide to attend a relaxing bridge retreat in the beautiful Texas Hill Country, Emma can't possibly say no.

But once Emma and her friends arrive, they soon realize that this retreat will be anything but relaxing! The two bridge instructors are bitter rivals—each trying to recruit the players into their own personal camps...

When one of the bridge instructors turns up dead and clutching the queen of diamonds in his hand, all heads turn to Emma. She knows she's innocent—after all, Diamond is her last name!—but fears the murderer may be sending her a message.

Now Emma and her friends must solve the mystery and discover who the killer is before he strikes again...or they could be next!