Khosatral Khel, the devil in brass

Translation may be curious, sometimes. Although Khosatral Khel is the opponent of the novel 'The Devil in Iron', the French version made from KK a 'Diable d'airain', the word 'airain' looking like 'iron', while being a totally different metal (in literary texts, 'airain' stands for an ancient alloy of copper - 'bronze' or 'brass').