[dark]

Bellatrix's mouth twisted as though she had taken an unpleasant dose of medicine.

"But you didn't return when he came back, you didn't fly back to him at once when you felt the Dark Mark burn —"

"Correct. I returned two hours later. I returned on Dumbledore's orders."

"On Dumbledore's — ?" she began, in tones of outrage.

"Think!" said Snape, impatient again. "Think! By waiting two hours, just two hours, I ensured that I could remain at Hogwarts as a spy! By allowing Dumbledore to think that I was only returning to the Dark Lord's side because I was ordered to, I have been able to pass information on Dumbledore and the Order of the Phoenix ever since! Consider, Bellatrix: The Dark Mark had been growing stronger for months. I knew he must be about to return, all the Death Eaters knew! I had plenty of time to think about what I wanted to do, to plan my next move, to escape like Karkaroff, didn't I?

"The Dark Lord's initial displeasure at my lateness vanished entirely, 1 assure you, when I explained that 1 remained faithful, although Dumbledore thought I was his man. Yes, the Dark Lord thought that I had left him forever, but he was wrong."

"But what use have you been?" sneered Bellatrix. "What useful information have we had from you?"

"My information has been conveyed directly to the Dark Lord," said Snape. "If he chooses not to share it with you —"

"He shares everything with me!" said Bellatrix, firing up at once. "He calls me his most loyal, his most faithful —"

"Does he?" said Snape, his voice delicately inflected to suggest his disbelief. "Does he still, after the fiasco at the Ministry?"

"That was not my fault!" said Bellatrix, flushing. "The Dark Lord has, in the past, entrusted me with his most precious — if Lucius hadn't —"

"Don't you dare — don't you dare blame my husband!" said Narcissa, in a low and deadly voice, looking up at her sister.

"There is no point apportioning blame," said Snape smoothly. "What is done, is done."

"But not by you!" said Bellatrix furiously. "No, you were once again absent while the rest of us ran dangers, were you not, Snape?"

"My orders were to remain behind," said Snape. "Perhaps you disagree with the Dark Lord, perhaps you think that Dumbledore would not have noticed if I had joined forces with the Death Eaters to fight the Order of the Phoenix? And — forgive me — you speak of dangers . . . you were facing six teenagers, were you not?"

"They were joined, as you very well know, by half of the Order before long!" snarled Bellatrix. "And, while we are on the subject of the Order, you still claim you cannot reveal the whereabouts of their headquarters, don't you?"

"I am not the Secret-Keeper; I cannot speak the name of the place. You understand how the enchantment works, I think? The Dark Lord is satisfied with the information I have passed him on the Order. It led, as perhaps you have guessed, to the recent capture and murder of Emmeline Vance, and it certainly helped dispose of Sirius Black, though I give you full credit for finishing him off."

He inclined his head and toasted her. Her expression did nor soften.

"You are avoiding my last question, Snape. Harry Potter. You could have killed him at any point in the past five years. You have not done it. Why?"

"Have you discussed this matter with the Dark Lord?" asked Snape.

"He . . . lately, we ... I am asking you, Snape!"

"If I had murdered Harry Potter, the Dark Lord could not have used his blood to regenerate, making him invincible —"

"You claim you foresaw his use of the boy!" she jeered.

"I do not claim it; I had no idea of his plans; I have already confessed that I thought the Dark Lord dead. I am merely trying to explain why the Dark Lord is not sorry that Potter survived, at least until a year ago. . . ."

"But why did you keep him alive?"

"Have you not understood me? It was only Dumbledore's protection that was keeping me out of Azkaban! Do you disagree that murdering his favorite student might have turned him against me? But there was more to it than that. I should remind you that when Potter first arrived at Hogwarts there were still many stories circulating about him, rumors that he himself was a great Dark wizard, which was how he had survived the Dark Lord's attack. Indeed, many of the Dark Lords old followers thought Potter might be a standard around which we could all rally once more. I was curious, 1 admit it, and not at all inclined to murder him the moment he set fool in the castle.

"Of course, it became apparent to me very quickly that he had no extraordinary talent at all. He has fought his way out of a number of tight corners by a simple combination of sheer luck and more talented friends. He is mediocre to the last degree, though as obnoxious and self-satisfied as was his father before him. I have done my utmost to have him thrown out of Hogwarts, where I believe he scarcely belongs, but kill him, or allow him to be killed in front of me? I would have been a fool to risk it with Dumbledore close at hand."

"And through all this we are supposed to believe Dumbledore has never suspected you?" asked Bellatrix. "He has no idea of your true allegiance, he trusts you implicitly still?"

"I have played my part well," said Snape. "And you overlook Dumbledore's greatest weakness: He has to believe the best of people. I spun him a tale of deepest remorse when I joined his staff, fresh from my Death Eater days, and he embraced me with open arms — though, as I say, never allowing me nearer the Dark Arts than he could help. Dumbledore has been a great wizard — oh yes, he has," (for Bellatrix had made a scathing noise), "the Dark Lord acknowledges it. I am pleased to say, however, that Dumbledore is growing old. The duel with the Dark Lord last month shook him. He has since sustained a serious injury because his reactions are slower than they once were. But through all these years, he has never stopped trusting Severus Snape, and therein lies my great value to the Dark Lord."

Bellatrix still looked unhappy, though she appeared unsure how best to attack Snape next. Taking advantage of her silence, Snape turned to her sister.

"Now . . . you came to ask me for help, Narcissa?"

Narcissa looked up at him, her face eloquent with despair.

"Yes, Severus. I — I think you are the only one who can help me, I have nowhere else to turn. Lucius is in jail and . . ."

She closed her eyes and two large tears seeped from beneath her eyelids.

"The Dark Lord has forbidden me to speak of it," Narcissa continued, her eyes still closed. "He wishes none to know of the plan. It is ... very secret. But —"

"If he has forbidden it, you ought not to speak," said Snape at once. "The Dark Lord's word is law."

Narcissa gasped as though he had doused her with cold water. Bellatrix looked satisfied for the first time since she had entered the house.

"There!" she said triumphantly to her sister. "Even Snape says so: You were told not to talk, so hold your silence!"

But Snape had gotten to his feet and strode to the small window, peered through the curtains at the deserted street, then closed them again with a jerk. He turned around to face Narcissa, frowning.

"It so happens that I know of the plan," he said in a low voice. "I am one of the few the Dark Lord has told. Nevertheless, had I not been in on the secret, Narcissa, you would have been guilty of great treachery to the Dark Lord."

"I thought you must know about it!" said Narcissa, breathing more freely. "He trusts you so, Severus. ..."

"You know about the plan?" said Bellatrix, her fleeting expression of satisfaction replaced by a look of outrage. "You know?"

"Certainly," said Snape. "But what help do you require, Nar-cissa? If you are imagining I can persuade the Dark Lord to change his mind, I am afraid there is no hope, none at all."

"Severus," she whispered, tears sliding down her pale cheeks. "My son . . . my only son . . ."

"Draco should be proud," said Bellatrix indifferently. "The Dark Lord is granting him a great honor. And I will say this for Draco: he isn't shrinking away from his duty, he seems glad of a chance to prove himself, excited at the prospect —"

Narcissa began to cry in earnest, gazing beseechingly all the while at Snape.

"That's because he is sixteen and has no idea what lies in store! Why, Severus? Why my son? It is too dangerous! This is vengeance lor Lucius's mistake, I know it!"

Snape said nothing. He looked away from the sight of her tears as though they were indecent, but he could not pretend not to hear her.

"That's why he's chosen Draco, isn't it?" she persisted. "To punish Lucius?"

"If Draco succeeds," said Snape, still looking away from her, "he will be honored above all others."

"But he won't succeed!" sobbed Narcissa. "How can he, when the Dark Lord himself— ?"

Bellatrix gasped; Narcissa seemed to lose her nerve.

"I only meant. . . that nobody has yet succeeded. . . . Severus . . . please . . . You are, you have always been, Draco's favorite teacher. . . . You are Lucius's old friend. ... I beg you. .. . You are the Dark Lord's favorite, his most trusted advisor. . . . Will you speak to him, persuade him — ?"

"The Dark Lord will not be persuaded, and I am not stupid enough to attempt it," said Snape flatly. "I cannot pretend that the Dark Lord is not angry with Lucius. Lucius was supposed to be in charge. He got himself captured, along with how many others, and failed to retrieve the prophecy into the bargain. Yes, the Dark Lord is angry, Narcissa, very angry indeed."

"Then I am right, he has chosen Draco in revenge!" choked Narcissa. "He does not mean him to succeed, he wants him to be killed trying!"

When Snape said nothing, Narcissa seemed to lose what little self-restraint she still possessed. Standing up, she staggered to Snape and seized the front of his robes. Her face close to his, her tears falling onto his chest, she gasped, "You could do it. You could do it instead of Draco, Severus. You would succeed, of course you would, and he would reward you beyond all of us —"

Snape caught hold of her wrists and removed her clutching hands. Looking down into her tearstained face, he said slowly, "He intends me to do it in the end, I think. But he is determined that Draco should try first. You see, in the unlikely event that Draco succeeds, I shall be able to remain at Hogwarts a little longer, fulfilling my useful role as spy."

"In other words, it doesn't matter to him if Draco is killed!"

"The Dark Lord is very angry," repeated Snape quietly. "He failed to hear the prophecy. You know as well as I do, Narcissa, that he does not forgive easily."

She crumpled, falling at his feet, sobbing and moaning on the floor.

"My only son . . . my only son . . ."

"You should be proud!" said Bellatrix ruthlessly. "If I had sons, I would be glad to give them up to the service of the Dark Lord!"

Narcissa gave a little scream of despair and clutched at her long blonde hair. Snape stooped, seized her by the arms, lifted her up, and steered her back onto the sofa. He then poured her more wine and forced the glass into her hand.

"Narcissa, that's enough. Drink this. Listen to me."

She quieted a little; slopping wine down herself, she took a shaky sip.

"It might be possible ... for me to help Draco."

She sat up, her face paper-white, her eyes huge.

"Severus — oh, Severus — you would help him? Would you look after him, see he comes to no harm?"

"I can try."

She flung away her glass; it skidded across the table as she slid off the sofa into a kneeling position at Snape's feet, seized his hand in both of hers, and pressed her lips to it.

"If you are there to protect him . . . Severus, will you swear it? Will you make the Unbreakable Vow?"

"The Unbreakable Vow?"

Snape's expression was blank, unreadable. Bellatrix, however, let out a cackle of triumphant laughter.

"Aren't you listening, Narcissa? Oh, he'll try, I'm sure. . . . The usual empty words, the usual slithering out of action . . . oh, on the Dark Lord's orders, of course!"

Snape did not look at Bellatrix. His black eyes were fixed upon Narcissa's tear-filled blue ones as she continued to clutch his hand.

"Certainly, Narcissa, I shall make the Unbreakable Vow," he said quietly. "Perhaps your sister will consent to be our Bonder."

Bellatrix's mouth fell open. Snape lowered himself so that he was kneeling opposite Narcissa. Beneath Bellatrix's astonished gaze, they grasped right hands.

"You will need your wand, Bellatrix," said Snape coldly.

She drew it, still looking astonished.

"And you will need to move a little closer," he said.

She stepped forward so that she stood over them, and placed the tip of her wand on their linked hands.

Narcissa spoke.

"Will you, Severus, watch over my son, Draco, as he attempts to fulfill the Dark Lord's wishes?"

"I will," said Snape.

A thin tongue of brilliant flame issued from the wand and wound its way around their hands like a red-hot wire.

"And will you, to the best of your ability, protect him from harm?"

"I will," said Snape.

A second tongue of flame shot from the wand and interlinked with the first, making a fine, glowing chain.

"And, should it prove necessary... if it seems Draco will fail. . ." whispered Narcissa (Snape's hand twitched within hers, but he did not draw away), "will you carry out the deed that the Dark Lord has ordered Draco to perform?"

There was a moment's silence. Bellatrix watched, her wand upon their clasped hands, her eyes wide.

"I will," said Snape.

Bellatrix's astounded face glowed red in the blaze of a third unique of flame, which shot from the wand, twisted with the others, and bound itself thickly around their clasped hands, like a rope, like a fiery snake.