First,you have to have the fishing rod. Next, go near where the cat is standing and catch TWO fish. The cat will take one of them and go home.
Fire the hawk in the monkey's direction.
you buy it at a store
Play through the game and free kakariko from the twilight, after this you will be able to talk to your 'friends'
give it back to ilia in kroke villge
from the golden wolf. sometime in the game its in ordon spring.
Go to the water where the cat is and fish. It'll take you two tries but the cat will grab the fish and run back to it's owner.
All you do is run to where the monkey dropped it and press a to pick it back up.
You need to fight them head-on on the bridge of Eldin.
After you have beaten the Goron Mines, a cut scene is triggered where you get her back.
You show your Dominion Rod to the lady in the Hidden Village.
After you complete the Forest Temple the twilight is no longer in that region and Link must travel to the next region of Hyrule to rid it of the twilight
Before you can get Zelda in the castle, you need to get all of the mirror shards first. Then , once you get all of the shards, you can get back the shadow pieces, allowing you to break the barrier around Hyrule castle. Then you can go get Zelda.