Here Be Dragons — Sharon Bolton

There must be a thousand people in the vicinity of Westminster Bridge on this beautiful evening . . . in approximately thirty minutes' time, many of them will be dead.

Mark Joesbury, of Scotland Yard's Covert Operations Unit, is undercover. Embroiled in a terrorist gang's plans for a deadly attack at the heart of the capital, he's risking everything to stop them. But as they prepare to target London's most iconic landmarks, it's no longer just countless strangers he's fighting to save. Because they've also got the woman he loves, DC Lacey Flint…