Spook Street (Slough House Series #4)

What happens when an old spook loses his mind? Does the Service have a retirement home for those who know too many secrets but don’t remember they’re secret? Or does someone take care of the senile spy for good?

These are the paranoid concerns of David Cartwright, a Cold War–era operative and one-time head of MI5 who is sliding into dementia, and questions his grandson, River, must figure out answers to now that the spy who raised him has started to forget to wear pants. But River…