When Mr. Hughes finds a fish all alone in the library and names her Library Fish, she knows she's found her true home. Library Fish makes friends in the library and on the bookmobile, checks that books are returned, and absolutely loves story time, when she can listen to all kinds of stories and poems, meet unforgettable characters, and travel around the world and even to other planets!

But one day, everything outside is covered in snow and no one comes to the library. Will Library Fish be brave enough to venture outside her fishbowl for the very first time and explore the library she calls home?