The whole story came out in bits and pieces. Harry had disguised himself and broken into St. Mungo’s, Stunning the healers who were supposed to be guarding Ron and breaking him free. Together, they had battled their way out, and by  pure happenstance, ran into Dolores Umbridge, who was wearing the locket of Salazar Slytherin as though it were a piece of jewellery. Why she had been in St. Mungo’s was anyone’s guess, but Ron’s attack and robbery had apparently been vicious. She was still unconscious, and might never recover. 