Sadie Kincaid is a UK-based romance author known for dark, emotionally intense stories built around powerful families, morally grey men, resilient heroines, and relationships shaped by danger, loyalty, and obsession. She is best known for the New York Ruthless series,... beginning with Ryan Rule, which helped establish her reputation among readers of mafia romance, reverse-harem romance, and high-stakes romantic suspense. Kincaid has since expanded into connected Ruthless worlds, paranormal romance, and standalone work such as The Perfect Fit, while The Auction opened her Wages of Sin series for a wider traditional-publishing audience. Her books appeal to readers who enjoy possessive romance, dramatic twists, found family, emotional damage, and love stories that develop under pressure rather than safety.
