The siege of Persis has finally been broken. Olik and Atrana send Schlemba to the Thundermountains to find the missing crystals, but Schlemba struggles with his newfound responsibilities. Even if he manages to reunite the skulls, he may not be able to control the terrible power they contain. Time is running out. The darkness is spreading its tentacles, and a sense of terror settles over the kingdom as the prophecy is about to be fulfilled. Will the world of mankind come to an end?
 
Book specifications: paperback; 304 pages; 8.5 by 5.5 inches.
Publisher: Booklocker (December, 2008)
ISBN: 978-1-60145-698-4
 

The Sign of the Serpent is the third and final installment of The Revelations Saga. Book I,The Crystal Skulls, was published in 2004, Book II,The Revelations of Arran Nak, was published in 2006.