Mallets Aforethought by Sarah Graves

Jacobia "Jake" Tiptree left her high-powered career for a dilapidated fixer-upper and the dream of a quiet existence in the quaint town of Eastport, Maine. But she found that no matter how carefully you remodel your life, murder can take up residence anywhere. It's Eastport's most notorious landmark: the old Harlequin House. Named for the disgraced physician Chester Harlequin, it was used as a hideout for gunshot gangsters and their molls during Prohibition's heyday. Now fixer-upper enthusiast Jake Tiptree and Harlequin's only living descendant, Ellie White, are refurbishing the mansard-roofed mansion to host the local Historical Society's upcoming gala. But when stripping down old wallpaper reveals a secret door to a room containing not one but two corpses, Jake and Ellie once again find home repair leading to homicide.