The night had folded into itself, the last wave of laughter fading down the drive as black cars pulled away into the early hours. The Burnett estate, so vibrant only hours before, had gone quiet. Staff cleared champagne flutes in hushed tones. The orchestra had long since packed their instruments. Only the scent of lilies and candle wax lingered in the hall.

Upstairs, the bedroom lights were dimmed to a golden hush. Sophie stood at the mirrored vanity, her back to the door, hands reaching behind her neck to unclasp the diamond pendant. She struggled briefly, the clasp resisting, before a pair of familiar hands moved gently over hers.

“I’ve...