Now that you are done with the Arbiter’s Temple, it is time to find the Twilight Mirror. (You originally came to collect the mirror from the Gerudo Desert. The mirror rests not far from the exit of the temple.
This part occurs in the same temple. Go across the bridge and up to the mirror chamber. Five twilight creatures accost you when you enter the room. Even hardy adventurers such as Link weary of battle. If you get between the creatures, they will open another warp point that leads back to Hyrule Castle town Enter the warp gate and find yourself outside of Hyrule Castle Town.
Coming here in human form is unusual for Link, but the mailman seems to have no trouble locating you. Take the missive and learn about a new type of bomb Barnes is now selling at his shop. Go to Telma’s Bar and have a drink. The patrons will also tell you where to go next. (There is even a convenient map for you to follow.) Your next destination is Snowpeak Mountain.
Use the warp point to get to the Domain of the Zoras. Go to the bottom of the lake and then climb up the mountain until you meet a person named Ashei. Ashei seems to be a bit of an artist, and more importantly, he has a sketch of the next monster you need to face. The next few parts of the game are relatively easy, but they help set up the end game for Twilight Princess.
The next person you need to visit is in Karaiko Village. Warp to the small village and head to the graveyard. Find Prince Ralis beyond it. Give the man the sketch and he will give you a coral earring. The piece of jewelry might seem odd, but you do not need to wear it. The earring finds its way to the end of the fishing line, where it will be used as a lure to catch the reekfish.
Go back to the Zora domain and catch a reekfish. (Despite the fish’s foul odor, the game shows Link catching it rather happily.) Go into wolf form and get a good whiff of the reekfish, as much as you may not wish to do so. Follow the scent trail back up Snowpeak Mountain. The scent trail ends at a wall. Go to the right of the wall until you can pick up the wondrous smell of reekfish again. You should eventually find an area that you cannot cross, but luckily there is a lot of loose snow in the area. Find a way to knock the snow down and you can proceed.
When you get the other side and use the howling stones found in this location, revert to Human form and you will eventually find a Yeti. Listen to his dinner invitation, but roll into the nearby icicle to knock it down. Use the icicle as a snowboard to get to the ruins that grace this mountain.
The foyer of the first room does not introduce many complications. Go to the ice in the first room and enter sense mode. Find and defeat the Poe here to get a piece of Jovani’s soul. Walk into the next room and encounter yet another yeti.
She tells you a tale about her husband finding some sort of pretty mirror. She would like you to retrieve it for her. Get the dungeon map from her and exit from this room through the door to the back. Her husband makes soup in the next room. Get an empty bottle and restore some soup. This soup can function as a minor healing potion in emergencies. It seems to be missing the perfect ingredient, however.