The Lost Puff


 * “Hi, Stephen. Thomas lost his puff and I'm trying to find it and... well, I thought that might be... the lost puff... up there..." "Up there? Well, that's just a cloud..." "Yes, of course. I knew that. A cloud. Okay... got to go. Great to see you. Bye, Stephen.”
 * ―Paxton and Stephen

The Lost Puff is the eleventh episode of the seventeenth series.