No Murder Before Its Time [signed] [first edition]

Esbeth Walters is 72 and shouldn't be messing around with murder, but when Texas Hill Country winemaster Win Castle pits his sons against each other over the inheritance of a 21,000-acre spread including the winery where Esbeth works part-time, the result is murder, and Esbeth is in the middle of it. Texas Ranger Tillis Macrory and Sheriff Watkins think she knows more than she's telling.