A PRINCESS OF MARS--DETHRONED Eldest child of her world's ruling dynasty, Aria is also the daughter of the evil Black Sorcerer--one of the dreaded First Men of Mars--and has been imbued with his sorcerous might. Rebelling against her father's tyranny, Princess Aria has joined forces with a human soldier and a savage Mock-Man, and now dares to challenge the First Men's rule. Will Aria's power be enough to tip the balance in John Blackthorn's favor, and free her world--or will she betray the rebels to her father--or worse--and bring all they have fought for crashing down? BLACKTHORN: DYNASTY OF MARS, by award-winning author I. A. Watson (Robin Hood; Sherlock Holmes) and with a spectacular cover painted by Adam Diller, takes the saga of John Blackthorn and his brave companions to the next level--and beyond--with a grand adventure stretching down the centuries and across the war-torn face of post-apocalyptic Mars