Spoilers Chapter 104

Professor Quirrell was standing upright and smiling.

In the Defense Professor's hand was a shape of black metal pointed at Harry's wand arm, held with the sure grip of someone who knew exactly how to use a semiautomatic handgun.

Harry's mouth was dry, even his lips were trembling with adrenaline, but he managed to speak. "Hello, Lord Voldemort."

Professor Quirrell inclined his head in acknowledgement, and said, "Hello, Tom Riddle."