Wow, I can’t wait to read this book it’s right up my street! Sibling rivalry and jealousy at its very best. Will Iris have an affair with her brother-in-law while they’re on the boat, it sounds like it or she is definitely fantasying about it and probably planning and scheming on making it happen - she’s either a dreamer or really does not like her twin. What has gone wrong that means she has to make an urgent trip to help them out. It’s a bit weird how she wheedled her way into sleeping in her sisters bed and riffling through their clothes - what’s that all about?!!! Let’s hooe the story is a real page turner and is as thrilling as the sneaky preview leads you to believe. And then there’s the story of her own marriage breakdown and her relationship with her mother. There’s more twists and turns to come and I can’t wait to get a copy of this book, a good summers read.