“My Lord?” said Snape.

“My Lord?” said Snape.

Voldemort raised the Elder Wand, holding it as delicately and precisely as a conductor’s baton.

“Why doesn’t it work for me, Severus?”

In the silence Harry imagined he could hear the snake hissing slightly as it coiled and uncoiled–or was it Voldemort’s sibilant sigh lingering on the air?

“My – my lord?” said Snape blankly. “I do not understand. You – you have performed extraordinary magic with that wand.”

“No,” said Voldemort. “I have performed my usual magic. I am extraordinary, but this wand…no. It has not revealed the wonders it has promised. I feel no difference between this wand and the one I procured from Ollivander all those years ago.”

Voldemort’s tone was musing, calm, but Harry’s scar had begun to throb and pulse: Pain was building in his forehead, and he could feel that controlled sense of fury building inside Voldemort.

“No difference,” said Voldemort again.

Snape did not speak. Harry could not see his face. He wondered whether Snape sensed danger, was trying to find the right words to reassure his master.

Voldemort started to move around the room: Harry lost sight of him for seconds as he prowled, speaking in that same measured voice, while the pain and fury mounted in Harry.

“I have thought long and hard, Severus…do you know why I have called you back from battle?”

And for a moment Harry saw Snape’s profile. His eyes were fixed upon the coiling snake in its enchanted cage.

“No, my Lord, but I beg you will let me return. Let me find Potter.”

“You sound like Lucius. Neither of you understands Potter as I do. He does not need finding. Potter will come to me. I knew his weakness you see, his one great flaw. He will hate watching the others struck down around him, knowing that it is for him that it happens. He will want to stop it at any cost. He will come.”

“But my Lord, he might be killed accidentally by someone other than yourself–”

“My instructions to the Death Eaters have been perfectly clear. Capture Potter. Kill his friends – the more, the better – but do not kill him.”

“But it is of you that I wished to speak, Severus, not Harry Potter. You have been very valuable to me. Very valuable.”

“My Lord knows I seek only to serve him. But – let me go and find the boy, my Lord. Let me bring him to you. I know I can –”

“I have told you, no!” said Voldemort, and Harry caught the glint of red in his eyes as he turned again, and the swishing of his cloak was like the slithering of a snake, and he felt Voldemort’s impatience in his burning scar. “My concern at the moment, Severus, is what will happen when I finally meet the boy!”

“My Lord, there can be no question, surely –?”

“– but there is a question, Severus. There is.”

Voldemort halted, and Harry could see him plainly again as he slid the Elder Wand through his white fingers, staring at Snape.

“Why did both the wands I have used fail when directed at Harry Potter?”

“I – I cannot answer that, my Lord.”

“Can’t you?”

The stab of rage felt like a spike driven through Harry’s head: he forced his own fist into his mouth to stop himself from crying out in pain. He closed his eyes, and suddenly he was Voldemort, looking into Snape’s pale face.

“My wand of yew did everything of which I asked it, Severus, except to kill Harry Potter. Twice it failed. Ollivander told me under torture of the twin cores, told me to take another’s wand. I did so, but Lucius’s wand shattered upon meeting Potter’s.”

“I – I have no explanation, my Lord.”

Snape was not looking at Voldemort now. His dark eyes were still fixed upon the coiling serpent in its protective sphere.

“I sought a third wand, Severus. the Elder Wand, the Wand of Destiny, the Deathstick. I took it from its previous master. I took it from the grave of Albus Dumbledore.”

And now Snape looked at Voldemort, and Snape’s face was like a death mask. it was marble white and so still that when he spoke, it was a shock to see that anyone lived behind the blank eyes.

“My Lord – let me go to the boy –”

“All this long night when I am on the brink of victory, I have sat here,” said Voldemort, his voice barely louder than a whisper, “wondering, wondering, why the Elder Wand refuses to be what it ought to be, refuses to perform as legend says it must perform for its rightful owner…and I think I have the answer.”

Snape did not speak.

“Perhaps you already know it? You are a clever man, after all, Severus. You have been a good and faithful servant, and I regret what must happen.”