He who must not be named has a letter that must not be uttered.

So says J.K. Rowling of her creation Voldemort, explaining that the evil one from the Harry Potter books and movies has a silent "t" at the end of his name.

Which means that Voldermort has something in common with Dumbledore that we had previously not known, though the Dark Lord has a warning for anybody who spends too much time on the subject.