Leo and the gang head to Old London town, where they find a conspiracy that's robbing urchins of their teeth. Is the culprit the creepiest dentist ever? Or is it something MUCH WORSE?. Leo and the gang head to Old London town, where they find a conspiracy that's robbing urchins of their teeth. Is the culprit the creepiest dentist ever? Or is it something MUCH WORSE?. Leo and the gang head to Old London town, where they find a conspiracy that's robbing urchins of their teeth. Is the culprit the creepiest dentist ever? Or is it something MUCH WORSE?.