When Hera discovered that Leto was pregnant and that Zeus was the father, she convinced the nature spirits to prevent Leto from giving birth on terra-firma, the mainland, any island at sea, or any place under the sun. Poseidon gave pity to Leto and guided her to the floating island of Delos, which was neither mainland nor a real island where Leto was able to give birth to her children. Afterwards, Zeus secured Delos to the bottom of the ocean. The island later became sacred to Apollo. Alternatively, Hera kidnapped Eileithyia, the goddess of childbirth, to prevent Leto from going into labor. The other gods bribed Hera with a beautiful necklace nobody could resist and she finally gave in.