Along with their fellow Wardens Will, Matt, and Jeremy, twins Mercy and Marguerite are stranded in the 1920s in the Irish speakeasy that will someday become their parents' restaurant. Assuming it lasts that long! But can it survive feuding brothers, corrupt Prohibition agents, scheming mobsters, and a bomb? Can they? Read the latest installment of the Latchkeys series as the kids try to weather this latest crisis, find the Splinter, and return home with their own history intact!