Kalm Traveler
Once you have the Highwind you can travel back to the town of Kalm, the location of which is pointed out on the map to the right. The Kalm Traveler can be found in the house furthest right on the screen on the second floor. If you talk to him he will tell you that he’s looking for the 3 items below:
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A Guide Book
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Earth Harp
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Desert Rose
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Guide Book
The Guide Book is obtained by morphing an enemy called Ghost Ship in the tunnel that leads to the Underwater Reactor (click the link to read more about that section of the game). Take the Guide Book you receive and trade it to the Kalm Traveler to receive the Underwater Materia. This Materia removes the 10:00 minute timer handicap when fighting Emerald Weapon, the patrolling enemy found underwater while aboard the submarine.
Earth Harp
You can obtain the Earth Harp by defeating Emerald Weapon, found patrolling underwater after you’ve cleared the underwater reactor part of the game (click here for information on defeating Emerald Weapon). The reward for turning in the Earth Harp is three Master Materia: Master Command, Master Magic and Master Summon.
Desert Rose
The Desert Rose is obtained by defeating Ruby Weapon, which is the most difficult encounter in the game - much harder than the final boss, Sephiroth (for information on defeating Ruby Weapon click on the link). The reward for turning in the Desert Rose is a Gold Chocobo which is a pretty terrible reward considering that you’re more than likely going to need to raise a Gold Chocobo of your own to obtain Knights of the Round Materia in order to defeat Ruby Weapon in the first place. Click here for more information on the Chocobo Racing and Breeding side-quests.
