“Always,” said Snape.

“Always,” said Snape.

And the scene shifted. Now, Harry saw Snape talking to the portrait of Dumbledore behind his desk.

“You will have to give Voldemort the correct date of Harry’s departure from his aunt and uncle’s,“ said Dumbledore. ”Not to do so will raise suspicion, when Voldemort believes you so well informed. However, you must plant the idea of decoys; that, I think, ought to ensure Harry’s safety. Try Confunding Mundungus Fletcher. And Severus, if you are forced to take part in the chase, be sure to act your part convincingly…I am counting upon you to remain in Lord Voldemort’s good books as long as possible, or Hogwarts will be left to the mercy of the Carrows…“

Now Snape was head to head with Mundungus in an unfamiliar tavern, Mundungus’s face looking curiously blank, Snape frowning in concentration.

“You will suggest to the Order of the Phoenix,“ Snape murmured, ”that they use decoys. Polyjuice Potion. Identical Potters. It’s the only thing that might work. You will forget that I have suggested this. You will present it as your own idea. You understand?“

“I understand,” murmured Mundungus, his eyes unfocused…

Now Harry was flying alongside Snape on a broomstick through a clear dark night: He was accompanied by other hodded Death Eaters, and ahead were Lupin and a Harry who was really George… A Death Eater moved ahead of Snape and raised his wand, pointing it directly at Lupin’s back.

“Sectumsempra!“ shouted Snape.

But the spell, intended for the Death Eater’s wand hand, missed and hit George instead –

And next, Snape was kneeling in Sirius’s old bedroom. Tears were dripping from the end of his hooked nose as he read the old letter from Lily. The second page carried only a few words: could ever have been friends with Gellert Grindelwald. I think her mind’s going, personally!

Lots of love, Lily

Snape took the page bearing Lily’s signature, and her love, and tucked it inside his robes. Then he ripped in two the photograph he was also holding, so that he kept the part from which Lily laughed, throwing the portion showing James and Harry back onto the floor, under the chest of drawers…

And now Snape stood again in the headmaster’s study as Phineas Nigellus came hurrying into his portrait.

“Headmaster! They are camping in the Forest of Dean! The Mudblood – ”

“Do not use that word!”

“ – the Granger girl, then, mentioned the place as she opened her bag and I heard her!”

“Good. Very good!” cried the portrait of Dumbledore behind the headmaster’s chair. “Now, Severus, the sword! Do not forget that it must be taken under conditions of need and valor – and he must not know that you give it! If Voldemort should read Harry’s mind and see you acting for him – ”

“I know,” said Snape curtly. He approached the portrait of Dumbledore and pulled at its side. It swung forward, revealing a hidden cavity behind it from which he took the sword of Gryffindor.

“And you still aren’t going to tell me why it’s so important to give Potter the sword?” said Snape as he swung a traveling cloak over his robes.