The queen Pasiphae had got son with a bull sent by Zeus, and gave birth to Minotaur, a creature half man – half bull. She was the wife of King Minos of Crete.
King Minos was embarrassed, but did not want to kill the Minotaur, so he hid the monster in the Labyrinth at the Minoan Palace of Knossos.
Go there and stay there!
Son of Minos, Androgeus, went to Athens to participate to the Panathenaic Games, but he was killed by the bull that impregnated his mother Pasiphae.
Crete forces Athens to send seven men and seven women to try to kill the Minotaur. The third year, Theseus, son of Aegeus decided to be one of the seven young men that would go to Crete, in order to kill the Minotaur. He promised his father that he would put up white sails coming back from Crete, allowing him to know in advance that he was coming back alive. If the boat would return with the black sails, Theseus was killed.
When Theseus met Princess Ariadne, daughter of King Minos, she fell madly in love with him and decided to help him. She gave him a thread and told him to unravel it as he would penetrate deeper and deeper into the Labyrinth, so that he knows the way out when he kills the monster.
Theseus takes this advice and creeps into the Labyrinth, trailing string as he searches for the Minotaur. Theseus managed to kill the Minotaur and with Ariadne’s thread he managed to retrace his way out. On his return from Crete to Athens, however, in his hurry to get home, he forgot to hoist a white sail signaling his success against the Minotaur. So when Aegeus saw a black sail, he believed that his son was dead and was so sad that he committed suicide.