Princess Celestia and Princess Luna were curious about other worlds so they went through the mirror and notice all the strange creatures, buildings and vehicles however they try avoid being seen and they went into a house through a open window. They found a couch to sleep on and in the morning. Celestia woke up to Luna poking her.

Princess Luna: "Sister. We have a major problem. We may have been spotted. WAKE UP!"

Princess Celestia: "What do you mean? We were fine last night. How would anything be here without noticing us?"

She turned and saw then she froze.