If you like Bridgerton and Pride and Prejudice (Prim‘s Elizabeth, but her mother and father reminded me of Mr and Mrs Bennet), you must read this book.
It isn‘t very mysterious because the real identity of the stranger is easy to guess, but it‘s so funny and fast and cute to read (the narration of the protagonist is never boring and the couple is lovely).
I‘m not really big on historical novels, but this one I had a blast reading.