Dead Lions by Mick Herron

Dickie Bow has been out of the game for awhile. But when he sees a familiar face, he follows it off a train and onto a bus. But Dickie doesn't make it off the bus. And Jackson Lamb wonders why. Yes, Dickie was an alcoholic and ate terribly but something just feels off. And his suspicion is confirmed by the one word that Dickie has left typed in his phones draft messages.
Suddenly, the members of the Slough House are off and running. But is someone talking out of school and giving information to those outside the unit? And will all of the slow horses be alive at the end of this book?

Three stars
This book came out 

Slough House #2

Follows Slow Horses

Borrowed as ebook from Libby

Opinions are my own