Your fingers brush the thick spine of your favorite Harry Potter book, and you can't stop yourself from cracking it open. As soon as you do, a rushing sound fills the air. The light in the room suddenly becomes blinding, and you can't see anything. An odd, tingling sensation sweeps through your body, and the floor seems to be shaking--

Then, everything stops. You open your eyes and find yourself sitting beneath a tree. How did you get here? You stand up and look around, and you see the castle looming over you. You spin around, your heart pounding in your chest, and take in your surroundings: a giant dark lake to your left, the castle looming over you, and groups of students dotted around the grounds. How is this possible? Are you dreaming? What should you do?

Maybe you should just stay where you are and hope that you'll wake up from this dream. But if this is somehow real, maybe you should try to blend in so no one spots you; you could look for a way into the castle...