the claimant of the gemstone seemed to be the leader of the yakshas who was learning the mystical craft of a certain mantra that would make him immune to fire , so that he can walk through it unharmed and claim the prize ... the elements themselves seemed to be at war rachana , and in a final desperate attempt to stop the yakshas from winning , virupakkha lord of the naga nation conjured a great body of water to force through the firewall with his daughter riding inside , having taken the form of a female cobra ...