So with the green vapors coming off your stricken conscience you say you want to go back the way you were! The carnival nods and listens. Yes, they promise, if you behave as they say, in a short while they'll give you back your twoscore and ten or whatever. On the promise alone of being returned to normal old age, that train travels with the world, its side show populated with madmen waiting to be released from bondage, meantime servicing the carnival, giving it coke for its ovens.