Nothing spreads like fear . . .

In the secretive inner circle of the ultra-rich, Alex Hoffmann is a legend. He has developed an algorithm for playing the financial markets that generates billions of pounds - and feeds on panic. When one day his system is threatened by a terrifying intruder who breaches the elaborate security of his lakeside home, his life becomes a waking nightmare of violence and paranoia.

But who is trying to destroy him? And is it already too late?

'There are moments when this book feels so up to date it could have been written next week . . .spookily exciting' EXPRESS

'The Fear Index is a frightening book, of course, as, with its title, it intends. Harris has an excellent sense of pace' TELEGRAPH

'Could scarcely be more of the moment' THE TIMES

'Harris is a master of pace and entertainment' OBSERVER