Killer & Karen at the Lakeside. Dually-Idaho Cozy Mystery series, #5

A charming lakeside Airbnb seems like the perfect escape for Lucy Morgan while a crew replaces her crumbling roof. It'll also give her a break from her overly nosy, porch-pirate neighbor, Ms. Karen Alcott. But instead of lazy mornings, lakeside strolls, and meeting her deadline for work, Lucy stumbles into a murder scene. And her name ends up suspiciously close to the top of the suspect list. Unfortunately, death has a habit of following Lucy.
First her parents, then her honorary Gran-the only person who ever truly understood her. Now, Gran's once-blooming tea garden has been flattened by her hot new neighbor, sending her into a tailspin of emotions. As bodies begin to surface and buried secrets unravel, Lucy finds unlikely allies in a loyal stray cat named Sir Oscar and reconnects with a childhood friend.