Pseudo-Apollodorus, Bibliotheca 1. 4 - 5 (trans. Aldrich) (Greek mythographer C2nd .) :
"But Kronos (Cronus) once again [after deposing Ouranos (Uranus)] bound the Kyklopes (Cyclopes) and confined them in Tartaros (Tartarus). He then married his sister Rhea. Because both Ge (Earth) and Ouranos (Heaven) had given him prophetic warning that his rule would be overthrown by a son of his own, he took to swallowing his children at birth. He swallowed his first-born daughter Hestia, then Demeter and Hera, and after them Plouton (Pluton) [Haides] and Poseidon. Angered by this, Rhea, when she was heavy with Zeus, went off to Krete (Crete) and gave birth to him there in a cave on Mount Dikte (Dicte) . . the armed Kouretes (Curetes) stood guard over him in the cave, banging their spears against their shields to prevent Kronos from hearing the infant's voice. Rhea meanwhile gave Kronos a stone wrapped in the swaddling-cloths to swallow in place of his newborn son. When Zeus was grown, he engaged Okeanos' (Oceanus') daughter Metis (Counsel) as a colleague. She gave Kronos a drug, by which he was forced to vomit forth first the stone and then the children he had swallowed."