Conspiracy thrillers don't come any better than THE KEY - from the author of the bestselling thriller debut of 2011, Sanctus. In the ancient Turkish city of Ruin, American journalist Liv Adamsen lies in an isolation ward staring at walls as blank as her memory. Something strange is stirring within her, whispering that she is 'the key'. But the key to what? Hunted across continents, Liv turns to the only person she trusts - a charity worker named Gabriel Mann. Together their paths lead to a shocking discovery - one that will tear them apart and change the world forever...