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Two of the obstacles traversed by travellers into Xibalba were rivers of blood and pus, both of which, the narrative suggests, are deadly to drink. Neither One and Seven Hunahpu nor their children are stopped by them. Christenson (p. 122): "Then they arrived at Blood River. They were able to pass through, because they did not drink from it." Ibid (p. 160): "And again they passed over Pus River and Blood River. In their hearts, the Xibalbans had intended these as traps. But they were not troubled. They just passed over them, floating on their blowguns."

Al entrar a Xibalba, Jun Junajpu y Wuqub Junajpu encuentran varios obstáculos. Uno de ellos es un rio de sangre. La manera en la cual los hermanos pasan este obstáculo es simplemente la falta de beber del rio. Ximénez traduce esta parte del texto como, "no bebíeron en el río, ní pudíeron ser venzídos síno q’que pasaron" (14v). Además, es interesante que, aunque no han entrado a Xibalba en este punto, el ambiente parece manifestar características del inframundo.