You came to Edinburgh on a sightseeing trip. You wandered away from your friends and started walking toward the castle garden that caught your eye. There was a big tree, and as you got closer, you noticed a kind of light… It was like a mirror, but when you looked at it, it was transparent, showing images from centuries ago. You reached out your hand and made a pass.

Suddenly, you found yourself in the Middle Ages.

A knight is walking quickly toward you.

“You’re not allowed in here! How did you get in?”