At the beginning, it tells the setting, which it says is in ancient times. It also talks about how the king fell in love with Igraine, and begged Merlin for help in marrying her.
This will work
After the king is murdered, the Archbishop and Merlin have a plan to establish a new king. Their new plan is a sword in a anvil, and whoever can pull it out is king.
No one will ever know
Arthur and his brother go to London because of the trial. There, Arthur’s brother competes in a mock battle.
All hail the king
Arthur had forgotten his brother’s sword so he went to the anvil to get one. He gave it to his brother who acted like he was the one, but his act was caught by his father who knew he was lying. Merlin then appeared and spoke to Arthur.
After Arthur had taken the sword, they put it back so no one would doubt them. He then retrieve it after the kings gave up and was chosen king.