The Late Breakfasters by Robert Aickman

A novel of disturbing wit – gaily unpredictable – rich in eccentrics – often very funny – always delightful. Young Griselda de Reptonville is invited by Mrs. Hatch to a house party at her country estate, Beams (which, incidentally, is haunted). There, amidst an array of eccentric characters and bizarre happenings, she will meet the love of her life, Louise. But when their short-lived relationship is cruelly cut short, Griselda must embark on a quest to recapture the happiness she has lost.