Broken Faith — James Green

Corrupt ex-copper, and fixer for the Catholic Church, Jimmy Costello is sent to Spain to investigate when a senior cleric is accused of being part of ETA, the Basque terrorist movement.

Unsurprisingly, perhaps, a murder occurs as soon as he gets to Santander, and it's not the last as Jimmy encounters some unwelcome reminders of his violent London past.

His enigmatic boss in Rome may not approve, but Jimmy, as always, decides to see things through, to the end.