Item description:

Ring the bell in front of you for a cut scene.
Run down to your right and across the fog.
Don't worry, you wont fall.
Run through the archway and begin the fight.

This is a two part battle.
First, you have to kill his dragon.
When it lands, strike its head repeatedly until
it dies.

When it does, you'll fight the king.

Stats are maxed so its an easy fight.