Wham! Ivy is down, smack in the middle of a messy sidewalk brawl with a woman in a red cape.

Senior-age Ivy is not generally a brawling-on-the-sidewalk sort of person, and this is not what she and Mac had in mind when they headed their motorhome to the small town of Stumble, on the banks of the Washington state side of the Columbia River. All Ivy wanted was a temporary job advertised by the local library.

She does get the job, but she also gets the angry enmity of the red-caped woman determined to get her fired from the job.

There's also murder. By unicorn. And with Ivy as a suspect in the murder, she and Mac are sleuthing again.

With complications beyond the unlikely murder weapon. Unplanned involvement in a local feud over a new community for wealthy retirees. Ivy's arrest draped in a sheer black negligee. An unexpected medical problem for Mac, a hostile cat, and a killer with deadly plans to bring Ivy's future to a murderous end.