The Circus Express is known to be one of, if not only, the most transformative express train anyone can have the pleasure to ride along. Whomever rides the Circus Express, claim to have saw magical things happen throughout the ride, and even had themselves get transformed into a circus performer by said magic. It's not just magic, but there's also mystical creatures, those who resemble circus performers, who tag along the ride for the fun and adventure, and entertain within each train cart.