Final answer:
Rhea saved her son Zeus from being devoured by Cronus by replacing him with a stone and sheltering him in a cave where the Curetes concealed his presence with their raucous dancing and drumming.
Step-by-step explanation:
Rhea prevented Zeus from being eaten by Cronus by substituting a stone wrapped in swaddling clothes for her newborn son Zeus.
When Cronus, seeking to prevent a prophecy that one of his children would overthrow him, attempted to swallow each of his offspring, he was tricked by this ruse. Rhea hid Zeus in a cave on the island of Crete. To further protect Zeus and ensure Cronus's deception, the Curetes, or Korybantes, performed noisy dances and drumming, which masked the sounds of the infant Zeus, so Cronus would not hear his cries.
This act not only saved Zeus, who would eventually grow to challenge and conquer Cronus, but it also set the stage for the future king of the gods to ascend in Greek mythology.