The water below is filthy, and best left not described in detail, aside from saying that it looks to once have been connected to the sewer system.<br/><br/>The plank is narrow, requiring a DC 10 Acrobatics check to cross. A DC 10 Knowledge: Engineering or Dungeoneering check determines that the plank looks sturdy enough to hold at least one person, if not two, without breaking; any more might be risky. Otherwise, she doesn't notice anything out of the ordinary, even if she moves onto the plank.