Books in the A Ground Rules Mystery series

As the owner of Portland, Oregon’s popular Ground Rules coffee cart, hard-working young master barista Sage Caplin is excited to expand her business with a brick-and mortar store. But not everyone gives her a warm welcome . . .Ground Rules isn’t the only newcomer set to open in Portland’s grand new Button Building. Fortunately, most of the fellow micro-restaurant owners and patrons are great—with two exceptions. There’s Rose, a true-crime podcaster and active TikToker who’s pestering Sage for an interview about her estranged con-artist mother; and Bianca, the familiar and perpetually unpleasant owner of Breakfast Bandits. Bianca is abrasive to everyone, so Sage doesn’t feel singled out. . . . Until Bianca falls dead at the building’s grand opening—a to-go cup of Ground Rules coffee in her hand. Laced with Ketamine, also known as Special K.It doesn’t help that just before she collapsed, Bianca was publicly rude to Sage. Or that Bianca’s boyfriend points the police toward Sage. Or that Rose, still hung up on investigating Sage’s mom, has declared she’ll solve the murder. Now it will be up to Sage to sift through a complex blend of motives, blackmail, and old and new rivalries to get to the truth of a very bitter brew . . .

"To top off her coffee business, Sage is now helping out with her boyfriend Bax's gaming company ... That makes it easy for her to pitch in with Bax's employee team-building event. The plan is to boost morale with a scavenger hunt. And it seems to be going well--until Robbie, a programmer known for being a prankster, turns up dead in Sage's roastery. There are two suspects so far--Now, it's up to Sage to find the culprit--before another life grinds to a halt"--

"At Campathon, an annual eco-friendly festival held on a farm outside of Portland ... Sage has scored a coveted place for her Ground Rules coffee cart thanks to her new-ish boyfriend, Bax, who's friendly with Maya, one of the musicians performing ... When Sage stumbles upon [a] dead body in the nearby woods--his hand still clutching one of her coffee mugs--it's clear that someone's grudge boiled over into murder"--