On a cold, fretful afternoon in early October, 1872, a hansom cab drew up outside the offices of Lockhart and Selby, Shipping Agents, in the financial heart of London, and a young girl got out and paid the driver. She was a person of sixteen or so--alone, and uncommonly pretty. She was slender and pale, and dressed in mourning, with a black bonnet under which she tucked back a straying twist of blond hair that the wind had teased loose. She had unusually dark brown eyes for one so fair. Her name was Sally Lockhart; and within fifteen minutes, she was going to kill a man.
Malfoy glanced around. Harry knew he was checking for signs of teachers. Then he looked back at Harry and said in a low voice, "You're dead, Potter. " Harry raised his eyebrows. "Funny," he said, "you'd think I'd have stopped walking around.