Moussa Keita, the "gold weigher" of the Mali Empire, discovered on the banks of the Niger River that the "gold sand" of the Songhai Trade Route could breathe and grow. The mutation of his best friend revealed the terrifying truth: this gold sand is the flesh and blood of a supernatural god, bringing about the curse of "golden multiplication", and even the blessing of voodoo has become an accomplice. In order to save the lifeline of the empire, Musa teamed up with Farid, the stubborn scriptor of Timbuktu, to unearth the ancient incantation of the Mandingo ancestors against the "unclean gold". They traveled down the river and faced their compatriots who were transformed into gold mines and the treacherous Berber business group. In the whirlpool of the Golden Delta, using the Niger River as ink, they used the lost "bone-eroding spell" to wash away the pollution of the ancient gods, and finally ignited the spark of "gold purification" on the land of West Africa.
