Eyeglass Island Library

Eyeglass Island Library is a place that exists in Oracle of Ages. It appears in both the past and present.

Present (Before changing the past)
The Library is initially closed off. There is no way to enter unless one travels to the past.

Past
The library is initially locked on the outside. A key is required to unlock the door. The back houses a puzzle that requires an ancient book from the present to complete it. Once completed, the old man situated in the middle of the room will give Link, Fairy Powder.

Present (After opening in the past)
Inside their are two rooms; the front is full of books and Zoras and people. The back room houses a old man and an ancient book, the book needed to complete the puzzle housed in the same room in the past.