The Case of Engine 87

Today, we’re investigating strange happenings at the train station. Late at night, people have reported seeing mysterious lights flickering near the tracks and hearing strange scratching sounds on the platform. Could it be a ghostly train, mischievous animals, or something else? Grab your detective hats, and let’s solve this mystery. Listen closely because we'll need to discover three clues and by the end we’ll have enough clues to figure it out together!