Catriona McPherson Serves Up 'Scot & Soda' In New Lexy Campbell Mystery Wednesday, April 17, 2019 | Sacramento, CA Listen / download audio Update RequiredTo play audio, update browser or Flash plugin. Courtesy of Catriona McPherson Mystery author Catriona McPherson returns to Insight with her second novel in the Last Ditch series, featuring Lexy Campbell. The first Scot Free book won a the Best Humorous Mystery award at Left Coast Crime this year, and McPherson is hard at work on book three.“Scot & Soda” follows Lexy Campbell as she settles into her life on a houseboat moored in the slough at the Last Ditch Motel and tries to build her counseling business. A Halloween party guest turns up dead, and Campbell is on the case. You can see Catriona McPherson on April 20 at 6:30 p.m. at Face in a Book in El Dorado Hills.