Settebello is an electric green engine who Thomas met turing his visit to Pompeii.
When Thomas travelled to Italy, he met a large green engine. He directed Thomas to deliver his passengers at Pompeii. He explained that Pompeii was an ancient city, which was buried under rock and ash when a volcano, Mount Vesuvius, erupted 2000 years ago. Pompeii is now a famous tourist attraction, and he says that travelling to Pompeii for some people is like travelling back in time.