If someone turns up with crumbs on their chin, it's natural to wonder where the cookies went. Astronomers have found themselves asking that same question about a handful of very strange stars. Among thousands of stars studied by astronomers, six red dwarfs stood out for carrying traces of a strange element in their atmospheres. In normal circumstances, this element should long ago have been annihilated deep within the stars' interiors. Its presence here suggests that these six stars have been