相传黑暗之门内，蕴涵着无穷的邪恶能量。只要有人铸造出黑龙剑，就可以打开黑暗之门，吸取黑暗之门内的邪恶能量。灵山门门主知道这一消息后，阴谋夺得黑龙剑的铸造秘籍，秘密铸造黑龙剑。 　　黑龙剑即将出世！ 　

How can a digital artwork that anyone can download for free be sold for 69 million dollars? Get the