There are 3 books in the Sancti Trilogy series. The newest book is The Tower which came out in 2013.

1
Sanctus

Book cover of Sanctus

The bestselling thriller debut of 2011 - the apocalyptic conspiracy thriller that has set the world alight...

REVELATION OR DEVASTATION?

The certainties of the modern world are about to be blown apart by a three thousand year-old conspiracy nurtured by blood and lies ...

A man throws himself to his…

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2
The Key

Book cover of The Key

Conspiracy thrillers don't come any bigger or better than THE KEY - from the author of the bestselling thriller debut of 2011, SANCTUS: 'Plenty of action, plenty of intrigue and wonderfully imaginative. The sort of novel to devour in one sitting' Kate Mosse.

Hounded. Haunted. Hunted. She is the most…

3
The Tower

Book cover of The Tower
The final instalment in the bestselling conspiracy thriller trilogy by Simon Toyne, author of SANCTUS: 'Plenty of action, plenty of intrigue and wonderfully imaginative. The sort of novel to devour in one sitting' Kate Mosse. For all fans of Dan Brown. AFTER THE RISE, COMES THE FALL. The forbidden Citadel…