Long long time ago, there was a boy who roamed around the world. He stayed near a river. One afternoon, he fished near the river and got very big fish. He felt happy and surprise.
Then he brought it home. The fish changed into a beautiful woman. And the scales of the fish became gold coin. They got married. The boy promise not to tell the origin of his wife to other people.
They had a son but he was very naughty and lazy. Once, the son was ordered to send meal to his father who was working in the farm. On the way, the son ate some of the meal and left the rest for his father. Thus his father got angry so he hit his son and said "No wonder you are, really a fish child!". The son told his mother what his father had said. The women was sad because her husband broken his promise.
Finally, the women went away and jumped into the river. When the women jumped into the river, it was raining heavily. The river was flooded. Then the area around the river became large lake. People called it Lake Toba.
