The Ishango Bone to the Mayan Calendar.....................a pair of twins go to hell to avenge their father's death................battle the devil in the ball game............their father lost..........they won.........from West Africa..............to Mexico..........

The Hero Twins: Against the Lords of Death: a Mayan Myth (Graphic ...

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Editorial Reviews. From School Library Journal. Grade 3-6–Hunaphu and Xbalanque are characters from a Mayan myth in the Popul Vuh. Their special powers ...