A Deadly Draught — Lesley A. Diehl

The lack of water and capital could put master beer brewer Hera Knightsbridge out of business ... and then things get worse. Much worse. Money is always a problem for Hera's microbrewery, but now water is scarce, as well. Worse, Hera discovers a rival brewer murdered in her Butternut Valley brew barn, making her the authorities' favorite suspect. To clear her name, Hera joins forces with local lawman Jake Ryan, her former lover from law school days. There's unfinished business between these two, and the sparks fly as they pursue a killer who has targeted Hera as his next victim.