The Chessman of Mars

Impetuous and headstrong, Tara, Princess of Helium and daughter of John Carter, defies the elements by flying into a rare, fierce Martian storm. Hurtled half a planet from her home she is threatened by grotesque, flesh eating monsters and barbarous warriors.
Is the mysterious Panthan warrior friend or foe? As hero battles for maiden in the chess-like games of Jetan, the pieces are fighting men and the stakes are life and death! Mars Series #5