This book was a slow start for me as I was confused with the many characters we are introduced to across the island and the POV of Abi threw me off. However the story was well told, complex, and it was a fantastic exploration into humanity, it was very thought-provoking to read. 
This is heavily marketed as a murder mystery, even on Goodreads the genres are "Mystery / Mystery Thriller / Thriller / Fiction" before "Science Fiction" and for me, I really see this as a sci-fi novel first and foremost. Had it been advertised as such, I would have had different expectations going into the book and probably been more inclined to rate it higher. But as for a murder mystery, the whodunnit was quite dissatisfying with the end reveal. The sci-fi aspects, interesting setting and landscape, and overarching plot are what make this book successful in my eyes rather than the mystery. 
Overall I enjoyed my experience reading The Last Murder at the End of the World and I am glad to have had the chance to read it. I would recommend this widely, I can see it being a popular release, and I'm going to buy a final copy on release date to gift to my mum who I think would definitely enjoy this book. 
3.5 stars

Thank you to NetGalley, Bloomsbury Publishing Plc UK and Stuart Turton for the opportunity to read this advanced reader copy.