The Black Knight's Fall

We must put an end to the Black Knight's scheming, and show those who oppose us that we will not stand by and allow our champions to be murdered.$B$BBy now, he will suspect that someone is on his trail. Challenge him in the light of day, where he cannot refuse or murder in the dark, $N.$B$BUse my argent charger for the battle. It's housed in the stables.$B$BSpeak to Squire Cavin at the Ring of Champions. The squire will call the Black Knight to battle, but you will make him answer for his crimes.