Poseidon made Pasiphae fall in love with the Minotaur. It could only be satisfied by eating human meat. So The king Aegeus made a deal with King Minos not to attack Athens for 9 years In exchange for 7 boys and 7 girls to be sent to the Minotaur to be eaten.
The king of Athens Then had a surprise one day on his doorstep was a young man called Theseus. It was his son that he had with a woman he had secretly married. When he leaved the woman he had left his sword and sandals under a boulder.
Theseus was reunited with his father He then offered to be one of the 7 boys to go to crete to rid Athens of this tereibal bueden. His father begged him not to but Thesus said I shall kill the Minotaur. I shall sail in black I shall come back with white sails celebrating my success.
However king Minos had a beautiful daughter Ariadne. She couldn't bear him to be killed by her half-brother. So she gave him a ball of thread and took him at night to the labyrinth. In return she wanted him to take her away with him when he won.
Theseus gave his word and using the thread to make sure he found his way, he reached the Minotaur which was surrounded by loads of bones. After a fierce battle, Theseus killed the beast. He followed the thread back.
Theseus rushed home, he forgot to change the sales to white. His father who was watching from the cliffs saw the black sails and jumped of the cliff into the sea and killed him self. Theseus returned a hero but could never forgive himself for the mistake.