"Those who direct the play do not necessarily take part in it," continued the slave girl, "but sit in those two great thrones which you see at either end of the board and direct their pieces from square to square." "But where lies the danger?" asked Tara of Helium. "If a piece be taken it is merely removed from the board--this is a rule of jetan as old almost as the civilization of Barsoom." "But here in Manator, when they play in the great arena with living men, that rule is altered," explained Lan-O. "When a warrior is moved to a square occupied by an opposing piece, the two battle to the death for possession of the square and the one that is successful advantages by the move. Each is caparisoned to simulate the piece he represents and in addition he wears that which indicates whether he be slave, a warrior serving a sentence, or a volunteer. If serving a sentence the number of games he must play is also indicated, and thus the one directing the moves knows which pieces to risk and which to conserve, and further than this, a man's chances are affected by the position that is assigned him for the game. Those whom they wish to die are always Panthans in the game, for the Panthan has the least chance of surviving." "Do those who direct the play ever actually take part in it?" asked Tara. "Oh, yes," said Lan-O. "Often when two warriors, even of the highest class, hold a grievance against one another O-Tar compels them to settle it upon the arena. Then it is that they take active part and with drawn swords direct their own players from the position of Chief. They pick their own players, usually the best of their own warriors and slaves, if they be powerful men who possess such, or their friends may volunteer, or they may obtain prisoners from the pits. These are games indeed--the very best that are seen. Often the great chiefs themselves are slain." "It is within this amphitheater that the justice of Manator is meted, then?" asked Tara. "Very largely," replied Lan-O. "How, then, through such justice, could a prisoner win his liberty?" continued the girl from Helium. "If a man, and he survived ten games his liberty would be his," replied Lan-O. "But none ever survives?" queried Tara. "And if a woman?" "No stranger within the gates of Manator ever has survived ten games," replied the slave girl. "They are permitted to offer themselves into perpetual slavery if they prefer that to fighting at jetan. Of course they may be called upon, as any warrior, to take part in a game, but their chances then of surviving are increased, since they may never again have the chance of winning to liberty." "But a woman," insisted Tara; "how may a woman win her freedom?" Lan-O laughed. "Very simply," she cried, derisively. "She has but to find a warrior who will fight through ten consecutive games for her and survive." "'Just are the laws of Manator,'" quoted Tara, scornfully.