Set against the stark backdrop of World War I, 'A House of Ghosts' transports readers to Blackwater Abbey—a mansion off the Devon coast playing host to a spiritualist gathering. Lord Highmount, desperate to connect with his fallen sons, unwittingly lays the stage for an eerie murder mystery, amplified by the secluded setting and a vicious storm. With secret intelligence agents amidst the guests, hidden agendas unfurl as spectral hauntings echo the turmoil of war. Secrets proliferate and trust thins, climaxing in a shocking demise as Blackwater's true haunting extends beyond the ethereal.