"The Night Watch" is the third Sarah Waters book I've read. I didn't enjoy it as much as the previous two and didn't feel such strong connections with these characters, but don't let that put you off, Waters is an amazing writer I'd highly recommend.
If I had seen a description of this book that described it as gothic, historial fiction, I'd never have picked it up. Learning it was paranormal would have put me off too, yet Waters' style is something different and I read every word with care. Some parts didn't sit quite right with me, dragging a little at times, but this was certainly an enjoyable read - it's 4 stars for "Affinity".
This one is difficult to review without saying too much but it's full of suspense, anticipation and has an atmosphere I felt immersed in. I loved this psychological thriller and will be scoring "The Paying Guests" 5 stars.