A book I've been looking forward to reading

Just started this at teatime. I've been looking forward to it as it's the sequel to The Last Summer which was a fabulous read. They are both set on St Kilda (before and during the evacuation) and although the characters are fictional, the history (which is very interesting) about the island is true.
The Last Summer had me gripped and it was difficult to put down. I hope this is as good. Karen Swan is one of my favourite writers.