Prahlada

The child Prahlada grew to be a great devotee of Vishnu. There was no one equal to him. Vishnu was his life. Disturbed, his father sent him for his education.
When his guru looked at him, Prahlada recited the name of Vishnu silently. When the guru was away, Prahlada taught the other students the way to worship Vishnu. The guru reported this to the king.
The king sent for his son and asked him why he was taking the name of the enemy of the clan.
Prahlada started praising Vishnu in front of the king.
Angry the king gave orders for his son to be killed. When the soldiers tried to strike the boy with their weapons, the weapons broke. When the king asked Prahlada how this happened, the boy said Vishnu was protecting him. Angry the king asked his soldiers to have the boy poked by the tusks of the wild elephants. When the tusks touched the boy, they became powder. When the king asked his son, how this happened, Prahalada said this was all because of Vishnu.
The king then had a huge rock brought. Prahlada was tied to that and flung in the sea.
In the water, Prahlada prayed to Vishnu. He said I am not afraid of death but I do not want to die before seeing you. With Vishnu's grace. the rock floated to the surface. Vishnu asked Prahlada what he wanted. The boy said having seen him, all his wishes were fulfilled. He asked for the deliverance of his father. Vishnu said he would soon do that.
The king sent for his son when he heard Prahlada was alive.