Remus
He heard the voices through the wall. Harry's and the Malfoy boy who had glared up at him during class and almost refused to learn.
"My Lord, Potter is here."
"Excellent. Well done Malfoy and welcome back Mr Potter."
"Spare me the pleasantries Riddle," Harry snapped back, pointlessly brave. "What have you done with Remus?"
"My dear boy," Voldemort continued, positively seething with malice and pleasure. "I have not done anything at all to our mutual acquaintance, Mr Lupin; he arrived here of his own free will and is of course free to leave any time he chooses."
"If he chooses to leave now he can leave with me?" Harry asked. Remus closed his eyes.
"He may leave," Voldemort conceded softly. Harry what are you doing here? Get out while you can.
"I want to see him," Harry insisted.
Voldemort laughed. "You're hardly in any position to make demands Mr Potter but since this also serves my purposes I will allow you this one."
Moments later August and the other appeared and dragged him to his feet, hauled him out, left him before Voldemort and Harry.
"How are you?" Harry asked, as if they were meeting in the Three Broomsticks once more.
"I've been better what the hell are you doing here?"
Harry smiled. "I could ask you the same question, Remus."
"Are you insane?"
"Possibly but," he smiled again, "I have faith that Dumbledore will help us once more, he knew we would need him."
There was a barely audible laugh from the circle of Death Eaters. "Albus Dumbledore has helped you too many times," Voldemort said silkily, formalities forgotten. "I fear this will not be one of them; Remus, have you decided to take up my offer?"
But Remus wasn't thinking about that any more. Harry had said that Dumbledore had known they would need him; he had already done something that would help them, a way out. A portkey.
Voldemort had of course asked him about whether he was armed; whether he had anything from Dumbledore but that had been while he had been shielded by Severus' potion and after it had worn off the question had not been asked again.
Everything.
He smiled.
Albus Dumbledore did not look particularly surprised to see the three of them tumble into his office, Harry grasping the corner of Draco's cloak, to drag him with them. He looked up from the large autographed copy of Magical Me he had been laughing over and regarded them thoughtfully over the top of his half moon spectacles.
"I take it, Remus, that the Dark Lord was not fooled?" he enquired politely, marking his page with a large ornate bookmark and setting the volume down on his desk.
"He was not," Remus managed. "Incidentally, Albus, I think you should fire Jonathan August."
