Olaf has learned to read, and it is one of his favorite things to do. He is a frequent visitor to the Arendelle library. When he and Anna discover that the librarian is going out of town for a few days and the library will be closed, they can't think of anything sadder. But Anna has a brilliant idea for a substitute librarian . . . Olaf! The lovable snowman shares his joy for books with the children of Arendelle and leaves the library in a state different than that in which he found it. Will Odvaar the librarian mind when he sees it? Or will a warm hug from everyone's favorite snowman fix everything?