A thoughtful book about identity and state authority disguised as a sci-fi/cold-war-thriller mash-up. I was listening to a news report yesterday about one of the Windrush Generation: his parents were invited to Britain from Jamaica when he was 8; he's gone to school, worked and paid tax, married and had children in the UK. 50 years after coming here, under Theresa May's "hostile environment", the Home Office declares him "illegal". ??