Things You'll Need
Instructions
Enter the library in Hyrule Town of "The Legend of Zelda: The Minish Cap" after you have found all three library books.
Talk to the librarian to return "A Hyrulean Bestiary," "Legend of the Picori" and "A History of Masks" to the library.
Exit the library.
Use Ezlo to shrink Link down.
Re-enter the library.
Climb the stack of books next to the librarian to get on the shelf. These are the books you just returned. Link cannot climb onto the shelf without first returning the books.
Walk through the cave to reach the Elder.
Talk to the Elder. He will drop Link into a cave through a trapdoor.
Push the block out of the way to proceed down and to the left.
Use the Gust Jar on the mushroom to allow Link to travel farther to the left.
Travel through the door.
Open the chest in this room. It contains the Flippers. Link will now gain the ability to swim.