Zeus secretly begot his son Zagreus with Persephone before she was taken to the Underworld by her uncle Hades. One midnight, The Titans, Zeus’ enemies, lured young Zagreus away with toys. Zagreus showed courage when they murderously set upon him, and he undertook several transformations in attempts to delude them. He became Zeus in a goat-skin coat, Cronus making rain, a lion, a horse, a horned serpent, a tiger, and a bull. At that point the Titans seized him firmly by the horns and feet, tore him apart with their teeth, and devoured his flesh raw.
Athene interrupted this grisly banquet shortly before its end and, rescuing Zagreus’ heart, enclosed it in a gypsum figure, into which she breathed life; so that Zagreus became immortal. His bones were collected and buried at Delphi, and Zeus struck the Titans dead with thunderbolts.
Graves, Robert, The Greek Myths. Folio Society, London, 1960, re-published 1996: 118.