The language is odd. There are odd words like 'binos' and there is quite a lot of clunky explanation. Too much about birds and I missed his deaf son as he was absent now living in London. I've only read Turnstone before this which was the first in the series and I think it was the deaf angle that most appealed. Perhaps because I was looking for that deaf angle I began to wonder if Graham Hurley was translating from sign language..... Anyway there were some really good things about the book - the main characters are built up really well although I wish I had not guessed the last outcome quite so early as it meant I did not read the last chapters with proper attention.