The missive was delivered by a young child, written on a scrap of plain parchment with no embellishments and no signature.
Chairwoman River,
I think its best to inform you that Councilor Treadwell is not as he appears to be. In truth, he is a monster with the shape of some giant, gluttonous slug, intent on eating everything. He can be forced to reveal this form in times of great stress.
If you do not believe me, ask Zilliah or Catch.