(Olympia, WA)  --  Thurston County, Washington sheriff's deputies are investigating, after arresting a woman who's accused of abusing and scalding her five-year-old niece.  KOMO-TV reports deputies were sent to a hospital, where the child was being treated for bruises and significant burns.  The aunt was booked into the Thurston County Jail for investigation of first-degree assault of a child.  The child in now in protective custody.