The following items are special and unique. They help Link obtain special items that he could not otherwise obtain.
Smooth Gem
Description: The smoothest gem around, it’s the prized possession of Oren, the queen of the water-dwelling Zora. It was stolen from her, and she needs Link to retrieve it for her.
Location: The thief who stole it sold it to a merchant in Kakariko Village, so the only option is to buy it back—for a whopping 200 Rupees! But don’t worry; the queen makes it worth your while.
Letter in a Bottle
Description: This letter has been stuffed into a bottle. The author seems to be in great peril and needs some premium milk. Get some for him, won’t you?
Location: Link needs Zora’s Flippers to some shallow water just east of the House of Gales. Bring the letter in a bottle to the Milk Bar and trade it for some premium milk, then hightail it to the man on the Death Mountain Trail!
Pendant of Wisdom
Description: This blue pendant is sign of true wisdom. This is needed to possess the Master Sword.
Location: Link obtains this item after defeating Margomill in the House of Gales.
Pendant of Courage
Description: This pendant proves a hero’s true courage. It is the second pendant needed to collect the Master Sword.
Location: This is given to you by Princess Zelda.
Pendant of Power
Description: The last pendant is the sign of true power. It’s the third pendant needed to obtain the Master Sword.
Location: Link obtains this item after defeating Moldorm in the Tower of Hera.