A scene from “Unfinished Business”

Mr Sullivan [on the conundrum of Lynda's woodcarving]: Well, it's obvious isn't it? A freak worm hole has opened up in the fabric of the space-time continuum. This seemingly insignificant woodcarving has been sucked back in time ten years to the bedroom of the infant Lynda Day. But what awesome celestial forces are behind this strange phenomenon? And what, Lynda, is their evil purpose? We shall have to act quickly to save the entire Universe!"