This mysterious, magical barrier protects the entrance to Hyrule Castle. The spell was cast by the evil wizard Agahnim.

Trust me, it's worth it. Oh Agahnim, you simple-minded fool of a dark wizard you! I could just kiss your face! After all,if it weren’t for you enslaving Princess Zelda (along with the other ...

When an evil long thought gone returns, it is up to Link and Zelda to seek out the Master Sword and stop the dark wizard Agahnim.