How do you get into the restricted section of the library in the Harry Potter and the Chamber of Secrets game?

In "Harry Potter and the Chamber of Secrets," you can access the restricted section of the library by using the Invisibility Cloak. First, you need to complete the quest that requires you to find the cloak. Once you have it, head to the library at night, wear the cloak to sneak past the librarian, and then you can enter the restricted section to find the information you need.