You notice a strange door in your library. You asked your librarian about it, but they don’t have any idea what you’re talking about. Each time you enter your library, you feel a pull towards this door. One day you decide to investigate. When you open the door and step inside, you feel the world spin and you land in 1885 at Columbia College where Melvil Dewey worked. When you find him in the library, he explains that the only way to return to your school library is to complete a series of challenges he created based on his organization of the nonfiction. Your knowledge and the clues you discover will help you. Good luck!