MATURE. Adults only. Every named and speaking character is an adult, with an age on the page: Elspeth Kerr 31, Dr Cassian Varrow 44, Iona Varrow 29, Lady Mira Varrow 28, Ewan Brodie 36, Mrs Ainsley 60, Dr Rook 50, Father Niall 47, Bailiff Kerr 58. The youngest is 28. No minor exists in the book in any role, memory, or plan. Themes: Sgarbh, a tidal island in the Hebrides, three miles from the mainland by causeway. The causeway floods for six hours at the night tide and the water stands at four point five metres at spring tide. Varrow House is a private surgical retreat that has corrected its guests for one hundred years. The ledger records forty-seven brides, eighteen of them alive, which is forty percent rounded the house's way. The wedding is at seven o'clock in the evening and the honeymoon cut is at seven o'clock in the morning, and the bride walks to the altar after the cut. There are eleven guests and twelve beds, and the twelfth bed is made up. The fee is one thousand nine hundred pounds for four days. The suite behind the mirror is the graft bed and the brides who did not leave are kept there. Sexual content: four explicit consensual scenes between adults, written in full, one per route, with what each of them wants and what stops it said out loud before anything begins, and the word stop said once in every scene and honoured immediately before anything continues. Body horror: a cellar operating theatre, living grafts, a bride who is dying, and a wall of photographs with a jar of wedding rings. No torture, no weapon, no instructional detail, no slur.