Once upon a time, on Mt. Olympus, the home of the gods, there was peace within Olympus. The rulers were Zeus and Hera.
The two rulers had a child named Hercules. He was extremely strong and thought very greatly of himself.
Hercules would constantly show off his strength to the mortals.
One day, he decided to fight the demon that was haunting a nearby town. The demon's name was Slitheri, he was the strongest demon in the universe. The battle day was a very rainy, cloudy, day.
Sadly, Hercules lost, leaving Slitheri to banish him to the underworld forever!
Zeus was very upset, making him throw his lightning bolt down on earth. Now, every day that is rainy and cloudy, Zeus throws his lightning bolt down to Earth because it reminds him of his beloved son, Hercules.