Hollow Bastion Library books

The Hollow Bastion Library books are key items that appear in . They are part of a puzzle in the Library of Hollow Bastion that requires Sora to find and place the books in the appropriate bookshelves, in order to reveal new areas and items in the library.

Kingdom Hearts
To reach the second floor of the Entrance Hall, Sora must complete a puzzle in the Library. There are eight books to be found, all of which have been misplaced throughout the Library. Upon placing a book in its respective slot, the bookshelf in which it was placed will move. Most of the bookshelves must be moved in order to clear out a path, while two others block the entrance to a Lift Stop. However, behind one bookshelf is a red button that unlocks a door leading to the upper layer of the Entrance Hall.

Design
The books are very conspicuous, colored brightly to attract players' attention. This is in contrast to the other library books, whose covers have muted colors.