What does Vlad do in Seussical?

Last night I found out that I was going to be Vlad. I was told that I have 1 line and I was just wondering what that 1 line is! If anyone knows... Something about black birds? Idk. Another question.. Does vlad sing? I mean I don't have a problem with it or the part (because I'm also a hunch and a cadet) I'm just curious about what I get to do. :D