#1 bestselling author Simon Kernick will leave you breathless with his sheer storytelling power in this race-against-time thriller about a terrorist threat in London.
An explosion blasts through a cafe in Central London. Minutes later, a call from an unknown terror group warns that a far greater attack will be launched in twelve hours time.
William Garrett, nicknamed Fox, is awaiting trial for mass murder. He claims he can name the bombers but only at a price.
It s a terrifying race against time for Detective Inspector Mike Bolt and Deputy Commissioner Tina Boyd as they chase their targets across the city in a desperate bid to prevent a major atrocity before it s too late
As shocking revelations are unveiled, you ll be racing to the last page as fast as the characters in "Ultimatum." As #1 "New York Times" bestselling author Harlan Coben says, Simon Kernick writes with his foot pressed hard on the pedal. Hang on tight "