Prince Dakkar and his mentor Count Oginski discover a plot by arch-enemy Cryptos to kill Napoleon. Arriving on their revolutionary submersible to intercept Cryptos, they glimpse a terrifying monster that seems to escape back into the bowels of the Earth. It leads them to discover an amazing underground world, and a plan more nefarious than they could ever have believed - even from Cryptos. The stage is set for an epic showdown complete with a giant reptilian cavalry and the Battle of Waterloo, in another breathlessly paced and endlessly inventive adventure for fans of Percy Jackson.

Author Biography

Jon Mayhew is a man with a dark imagination, who has always loved writing and storytelling. An English teacher (to children and teenagers) for twenty years, he now works as a specialist teacher for children with autism. He has four children himself and, when neither teaching nor writing, he plays in ceilidh bands and runs marathons. Jon lives between the ancient cities of Chester and Liverpool.