Ultimatum: A Thriller

#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 again...