So when a terror cell attacks his favourite football stadium, killing dozens and injuring hundreds more, Jake is both relieved and appalled - only the day before was he in the same crowds, experiencing the same atmosphere.
But now he must put that behind him and focus on finding the people responsible.
And fast. Because another attack's coming.
Accepting the invitation, Pearl looks forward to meeting the happy couple's friends and family, as well as Amy's fiancé, Guy, a handsome and successful adventurer who appears to be Mr Perfect. She also has time to reflect on her own engagement to Canterbury CID detective, DCI Mike McGuire...
But before any wedding bells sound, murder strikes - and Pearl and McGuire are thrust together again - as partners in crime.