One of my favourite books is The Woman in White, by Wilkie Collins. I first read it years ago, and have re-read it several times. It is so well-written, even though it’s an early detective story, and so I know ‘who dunnit’; but that doesn’t spoil the enjoyment of the reading experience.
It has a hero and a heroine, and several nasty villains! Willie Collins’ other well-known novel is The Moonstone, but I much prefer The Woman in White.
I highly recommend it if you haven’t thought of putting it on your list of books to read.