A threat has been made. An ultimatum delivered. Innocent people are in mortal danger. It is the gripping new bestseller from the master of the race-against-time thriller. 8am: an explosion blasts through a cafe in central London. Minutes later a call is made to a local radio station: 'We've just detonated a bomb. Another will explode shortly. The British Government has until midnight tonight to meet all our demands, or a far greater attack will take place somewhere in the country that will bring fire down on all your heads. You have been warned ... ' DC Tina Boyd and DI Mike Bolt have just hours to stop the terrorists - before it's too late ...