Answer:He kills his assailant (White Knight)
Step-by-step explanation:
Yet the White Knight was shocked the day a knight of gleaming whiteness confronted him suddenly in the forest and with a wild whoop thundered towards him with leveled lance. The White Knight barely had time to draw his sword and, ducking under the deadly steel, plunge it into the attacker's breast."
Falling Action
The White Knight goes back and realizes that, he himself has become a black knight.