Mabel plans to bring the thrills of volunteering to the masses-if she doesn't get the ax first.

After losing her job of twenty-three years, Mabel decides to launch what will surely be a glamorous new career as an author. Having recently inherited her late grandmother's house, she has the freedom to spend time volunteering and writing about her experiences.

Unfortunately, Mabel's plans soon go off the rails. Her inheritance comes with decades of clutter, an overgrown lot, a dog named Barnacle, and a neighbor with an ax to grind. And her first assignment as a Medicine Spring Historical Society volunteer is to lead a tour of the Sauer Mansion, locally known as the "Ax Murder House," site of a notorious 1930's double homicide.

As Mabel shepherds her tour group through the house, it appears history's repeating itself when she stumbles across a body in the parlor. Finding herself on the suspect list, Mabel scrambles to figure out who swung the fatal ax. In the process, she can't help being drawn into investigating the unsolved historic murders, teamed up with PI John Bigelow, a man she isn't sure she can trust. With an ax murderer on the loose, will Mabel be next?