 He seduced Salmoneus's daughter Tyro in one of his plots to kill Salmoneus, only for Tyro to slay the children she bore him when she discovered that Sisyphus was planning on using them eventually to dethrone her father.King Sisyphus also betrayed one of Zeus's secrets by revealing the whereabouts of Aegina, an Asopid who was taken away by Zeus, to her father, the river god Asopus, in return for causing a spring to flow on the Corinthian acropolis.Zeus then ordered Death (in Greek, Thanatos) to chain King Sisyphus down below in Tartarus.