After centuries of secrecy, the forbidden Citadel in the historic Turkish city of Ruin opens its gates. A deadly disease has ravaged everything within. Charity worker Gabriel Mann is dying – but may also hold the only cure.
Without him, ex-journalist Liv Adamsen stands alone against those who want her silenced. However, Liv soon has far bigger concerns than just her own life...
In America, FBI agent Joe Shepherd searches for NASA’s missing head scientist. His investigation unearths a global conspiracy that is preparing for an event beyond all reckoning.
But nobody is ready for what is coming. And when it does – it will change everything.
In 2007 Simon Toyne quit his job and moved to France to fulfil a long-held desire to write a thriller. After a sleepless night crossing the Channel, he and his family abandoned a planned eight-hour drive to their new home and limped instead to the city of Rouen. It was the sight of the sharp spire of Rouen Cathedral piercing the pre-dawn sky that gave birth to the fictional Citadel of Sanctus.
Sanctus, The Key and The Tower all became immediate bestsellers. To date they have been translated into 25 languages and published in 40 countries.