Changes

It's certainly more of a moral and psychological spy novel than an action packed one, and that is very much the book's strength. It's cleverly plotted and you are equally keen to hear about the past as about how the present day questioning is going. It also subtly asks if someone who has done a traitorous thing in exceptional circumstances is therefore a traitor forever.

There's plenty of choice when it comes to spy fiction, but for another slightly different take on the genre, [[Sweet Tooth by Ian McEwan]] is also worth checking out.