There are some things deep within the belly of the earth that should never be disturbed. Which is exactly why Alfred wants to stay at home. When a vision foretells a cataclysmic battle between the 'Sons of Light' and the 'Sons of Darkness', Alfred is called into action. Whoever finds the fabled 13th skull of Merlin, will have in his hands the power to usher in a new Dark Age and the Apocalypse. And so the race is on to find the skull, which rests at the bottom of an abyss called Krubera - a place so terrifying it nearly drove Alfred's mentor, Op-Nine, insane.
- ISBN10 0747595534
- ISBN13 9780747595533
- Publish Date 1 September 2008 (first published 1 July 2008)
- Publish Status Out of Print
- Out of Print 31 March 2016
- Publish Country GB
- Imprint Bloomsbury Publishing PLC
- Format Paperback
- Pages 304
- Language English
- URL http://bloomsbury.com/Trade/