Early in the game Klaus can be found at the Picori Festival and he will tell Link that the mystic doorway opens only once every hundred years, and this doorway is what links the human world to that of the Picori.
Link can later meetup with Klaus, who is blocking the entrance into the Library. He came to check out a book, but the library is not open yet. He basically serves as a blockade, preventing Link from entering the Library until later in the game.
Link is able to fuse Green Kinstones with Klaus at various points in the game. As it is a Green Kinstone fusion, it is not set to a specific treasure chest, but instead, one of the many possible treasure chests.
- ↑ "Only once every hundred years does the mystic doorway open. This is the door that links the human world to the world of the Picori. When this door opens, the Picori can enter our world. And guess what! This marks the hundredth year since they last appeared here! I'm sure something wonderful is going to happen at this festival!" — Klaus, The Minish Cap.
- ↑ "I came to check out a book, but they're not open yet. Hahhh... Well, age brings patience, sonny. I can wait." — Klaus, The Minish Cap.
- ↑ "Wonder what I should check out today." — Klaus, The Minish Cap.