The Wintringham mystery /

"Stephen Munro, a demobbed army officer, takes a job as a footman to make ends meet. Employed at Wintringham Hall, the decaying country residence of Lady Susan Carey, his first task entails welcoming her eccentric guests to a weekend house-party, where her bombastic nephew decides that an after-dinner seance would be more entertaining than bridge. The lights go out - and Cicely disappears!
With Lady Susan reluctant to call the police about this childish prank, Stephen and the plucky Pauline Mainwaring take it upon themselves to investigate. But then a suspicious death turns the game into an altogether more serious affair..." -- Back cover