“This is an interesting story and a lot of the interesting is spoilerish, which makes it quite a difficult book to review, though one of my first guesses was incorrect the other was quite correct.
Hilary is a reluctant student in his fourth school, he's not trying very hard to fit in to his new school and you don't really blame him, the school doesn't challenge him in ways that matter for him, then again he doesn't care. He meets with Finn, who lives alone on a tidal island that's being slowly eroded by the tides. Finn doesn't go to school, lives according to whim and is Hilary's ideal. As their friendship grows problems start to creap into their situation and when it all goes horribly wrong it's interesting to see how things resolve
It's an interesting read, one that really caught me by surprise and wouldn't let go throughout.”