I thoroughly enjoyed this adventure. Having been on my reading/listening list for a while I am glad it finally was the right time. Maybe I was waiting to be living in Wales before reading it (subconsciously, no idea previously it would 'take place' here).
Even though it is a youth/children's novel, it is not too blatant and childish, like I have realised about some other teen favourites. Very adventurous and full of peculiarities, and of course, some things made less sense, like Jacob's decision about his father and the peculiar children in the end. Or most peculiar at all - the Polish grandfather being narrated with a strong German accent!
I loved the addition of photos and I can only imagine the process the author went though to find the pictures to match the characters, or the other way around - seek the photos and create characters around them!
A short but sweet story and I look forward to finding out what unravels next.