The Bone Clocks by David Mitchell months ago but never got around to writing the review. It was very well reviewed by others (summary on the amazon page).
I thought it was very good for the most part but unfortunately the end was shite. The last chapter is so weak that I wonder if he wrote the story and then felt like it needed some additional exposition. Where was his editor?
The ending fails at a macro level (it is unnecessary and predictable) but the storytelling at a micro level also really falls off in the last chapter. It is repetitive and boring in the extreme, right up until the 'dramatic climax' you can see from miles away. Which is a shame, since what should have been the end of the book (the previous chapter) is riveting.
On balance I think it is a book worth reading, because the story is well told up until it takes a nosedive.
Recommended, with reservations.