“Master Barty, Master Barty,” sobbed Winky through her hands. “You isn’t ought to tell them, we is getting in trouble . . . ”

“Did anybody ever discover that you were still alive?” said Dumbledore softly. “Did anyone know except your father and the house-elf?”

“Yes,” said Crouch, his eyelids flickering again. “A witch in my father’s office. Bertha Jorkins. She came to the house with papers for my father’s signature. He was not at home. Winky showed her inside and returned to the kitchen, to me. But Bertha Jorkins heard Winky talking to me. She came to investigate. She heard enough to guess who was hiding under the Invisibility Cloak. My father arrived home. She confronted him. He put a very powerful Memory Charm on her to make her forget what she’d found out. Too powerful. He said it damaged her memory permanently.”

“Why is she coming to nose into my master’s private business?” sobbed Winky. “Why isn’t she leaving us be?”

“Tell me about the Quidditch World Cup,” said Dumbledore.

“Winky talked my father into it,” said Crouch, still in the same monotonous voice. “She spent months persuading him. I had not left the house for years. I had loved Quidditch. Let him go, she said. He will be in his Invisibility Cloak. He can watch. Let him smell fresh air for once. She said my mother would have wanted it. She told my father that my mother had died to give me freedom. She had not saved me for a life of imprisonment. He agreed in the end.

“It was carefully planned. My father led me and Winky up to the Top Box early in the day. Winky was to say that she was saving a seat for my father. I was to sit there, invisible. When everyone had left the box, we would emerge. Winky would appear to be alone. Nobody would ever know.

“But Winky didn’t know that I was growing stronger. I was starting to fight my father’s Imperius Curse. There were times when I was almost myself again. There were brief periods when I seemed outside his control. It happened, there, in the Top Box. It was like waking from a deep sleep. I found myself out in public, in the middle of the match, and I saw, in front of me, a wand sticking out of a boy’s pocket. I had not been allowed a wand since before Azkaban. I stole it. Winky didn’t know. Winky is frightened of heights. She had her face hidden.”

“Master Barty, you bad boy!” whispered Winky, tears trickling between her fingers.

“So you took the wand,” said Dumbledore, “and what did you do with it?”