That was not all, either, that Apollo had accomplished for the good of men. He protected the Muses, who were the daughters of Jupiter and Memory and could do all sorts of things to make happiness. They could sing, and draw music from the strings of the lire, write stories and poems, and paint pictures. It was said, also, that the laurel tree belonged to Apollo for making wreaths with which to crown those who had done great deeds or made dark paths bright.
But the giants could see little value in Apollo's light. They thought mainly of how to wrest riches and nectar and ambrosia from the gods, and they decided to try and kill Apollo and the Muses first of all.
Thessaly had the wildest forests and the most rocky coasts of any part of Greece. It was a fitting place for the giants to meet, and it must have been a terrible sight when they landed and formed their ranks for battle. They say that Tityus, one of their leaders, covered nine acres when he lay down for a nap on a plain. Certain others had a hundred arms, limbs made of huge serpents and could breathe fire. The worst part about this race of giants was the fact that their hearts were different from those of the celestials and the mortals. They had hearts made of solid stone which could never beat and feel warm. That was why the giants made preparations to climb up the steep sides of Mount Olympus.
No one in all Greece dared to try and stop this war of the giants. They pulled up the mountain Ossa and balanced it on top of Pelion to bridge the way from the earth to the sky. They armed themselves by tearing up great oak and cypress trees for clubs and carrying rocks as large as small hills with them. Then the giants climbed up and attacked the habitation of the gods.
It seemed as if the giants were going to win, for even the gods were frightened and made haste to change their forms. The mighty Jupiter took upon himself the figure of a ram. Apollo became a crow, Diana a cat, Juno a cow, Venus a fish and Mercury a bird. But Mars, the god of war, got out his chariot and went to meet the giants, and the others returned at last, for there was really no courage like theirs.
The battle was still with the giants, though, for no weapons could kill them. Mars threw his spears and they rebounded from the stone hearts of the giants. No one knew what would happen, for certain of the giants went down to the earth again and brought up hills with which to crush the habitations of the gods, but just then a great idea came to Apollo. He believed that there were unseen forces which were quite as powerful as the giants' trees and rocks and hills in deciding this battle. So Apollo sent Mercury, the messenger with winged shoes, post haste with a secret message to Helios who lived in the palace of the sun commanding him to close and lock the doors. There was no light for the giants to fight by and they were well known to be hulking, awkward creatures, very clumsy about using their hands and feet. They needed the light. They had even made attempts to steal the summer from mortals that they might have more sunshine themselves and they had succeeded in a way, for winter came upon the earth every year with its cold and shorter days. But the giants had neglected to bring any sunshine with them and it was suddenly as dark as night on Mount Olympus.
The giants fumbled about and stumbled and fell upon their own weapons. Taking advantage of this temporary rout, Jupiter sent a sky full of thunderbolts into their midst and they tumbled back to earth again. It was odd, but Apollo, whom the giants had thought so unessential because he protected knowledge and the oracle of Delphi and the tender Muses, had conquered with his own special weapon, light.
The giants were not particularly hurt by their fall; they were only driven out of the habitation of the gods and they began taking counsel together at once as to how they might begin their war all over again. But they suddenly discovered that they had nothing to eat. In their absence, Ceres had cut down and uprooted from the earth the herbs that they needed to keep them alive and preserve their strength. Then, to make sure that their destruction would be complete, Jupiter covered each giant with a volcano. Each was imprisoned fast underneath a mountain, and all he could do was to breathe through the top once in a while in a fiery way.
That was the end of the giants. For a while they did some damage, particularly the giant Enceladus whom it took the whole of the volcano Aetna to cover and keep down. But gradually even the volcanoes became quiet and there was more peace upon the earth.