[The Ringmaster takes the letter (not having the chance to comment on how funny him sitting on her desk was) and squints at it, as if it's taking her a few moments to process what she's seeing and hearing. As her eyes scroll down to the signature at the bottom, she snarls dismissively and smacks the paper with her hand indicatively.]

So? It's from The Starlight! She's a looney. She sees the future but refuses to speak of it in words that anyone understands, because "the Stars don't speak in certainties" or some nonsense. She has a uselessly vague foreboding omen for practically every situation!

[At least this explains why Childermass got the letter instead of the Ringmaster.]