Is it that hard?
Link first has to remove the shadows from Hyrule by reuniting the lightghosts (?) with their light. Doing this, he also has to collect the pieces of the shadowcrystall. When he has finished this Quest, the pieces are stolen by Zanto. The next Quest consitst of finding and reuniting the pieces of the shadowmirror. After this, Link can go to the shadowworld, where he kills Zanto, and gets the shadowcrystall back. Now, with the help of it and Midna, the Girl, that helped him from the beginning, he can enter Hyrule Castle, where he has the final showdown with Ganondorf.
Back to german: