The magical barrier Snape had erected to block Sherlock's hearing was dissolved by Dumbledore. Silence gave way once more to sound, and Snape lowered himself back onto his sofa.
"Let us return to the matter at hand, gentlemen."
Dumbledore turned slowly. Behind the half-moon spectacles, his blue eyes moved between the two of them.
Moonlight played across his silver hair and beard, but it could not reach the gravity that lay deeper in his gaze.
"In a couple of days," he said, "I would like you both to accompany me somewhere."
"A Horcrux?"
"Correct. Voldemort has returned. We must accelerate our efforts—no one can say whether he might move the Horcruxes again."
"Wouldn't that actually make things easier?"
"How so?"
"Professor Snape is at Voldemort's side constantly now, isn't he? If Voldemort makes any move, Snape will know about it."
"Holmes. Don't take the rest of us for fools."
"On the contrary—I think you're quite clever enough, Professor."
"…Voldemort does not trust me as much as you seem to imagine."
"Then find a way to make him."
"You—"
"Sherlock has a point, Severus. I think it's time to feed Voldemort some information.
You need to demonstrate your value to him—only then will his trust in you deepen.
At the same time, you must be convincing. All of us are depending on you to maintain Voldemort's confidence, for as long as possible."
"You really do think highly of me, Dumbledore."
"My faith in you has never wavered, Severus."
"…I'll try."
"Good. Now—let us discuss the matter of Occlumency—"
"I think there's something that ought to be addressed first. The final Horcrux."
"Sherlock—are you referring to the snake?"
By now Dumbledore had begun to sense that something was shifting. He adjusted his spectacles and attempted to steer the conversation back toward safer ground.
"No." Sherlock's gaze fixed on Dumbledore, direct and unwavering. "I'm referring to Harry Potter."
Silence.
An unbearable silence.
After a long moment, Snape turned his head slowly toward Dumbledore and asked, one word at a time: "Dumbledore. What. Is. The. Meaning. Of. this?"
"I'm sorry, Severus. My intention was to tell you once the snake was the only one remaining."
Dumbledore glanced sideways at Sherlock, who sat observing with his usual calm. There was a faint helplessness in the look—he hadn't anticipated that Sherlock would detonate this particular bomb here, now, in this manner.
"I don't want excuses." Snape's voice rose sharply. "Tell me exactly what's going on."
Dumbledore drew a long breath and closed his eyes.
"On the night Voldemort attempted to kill Harry—when Lily placed herself between them—the Killing Curse rebounded. A fragment of Voldemort's soul was blasted free, and it latched onto the only living soul left in that ruined house.
A piece of Voldemort lives inside Harry. It is what gives Harry the ability to speak to serpents, and what allows him to access Voldemort's thoughts.
As long as that fragment—hidden from Voldemort himself—clings to Harry and is sheltered by him, Voldemort cannot truly die."
"Then the boy—the boy must die?"
What followed was unexpected.
The shock, the fury, the anguish drained from Snape's face like a tide going out, leaving behind a stillness that was deeply unsettling.
Both Sherlock and Dumbledore knew what moved beneath that stillness: a despair far darker than anything worn openly.
"Yes, Severus."
Dumbledore's eyes remained closed. His voice was barely louder than a breath—but it carried the immovable weight of what could not be undone.
Silence again. A long, long silence.
Snape stared at the closed eyes across from him.
When he finally spoke, the anguish suppressed across more than a decade—the collapse of something he had believed in utterly—could no longer be contained. Even his voice had begun to tremble.
"All this time—I thought—I thought we were protecting him. For her. For Lily."
Her name caught in his throat.
"We protected him because he had to be nurtured and shaped—his abilities honed." Dumbledore kept his eyes shut, as though submerged in the vast weight of duty and grief. "As the boy grows, the connection between them grows stronger too—like a parasite taking hold of its host. Both Sherlock and I believed that if things continued this way, Harry would begin to sense it himself."
Dumbledore opened his eyes. In them was exhaustion, and a compassion that had hardened into resolution.
"If I know him as I believe I do—I think he will arrange everything. When the moment comes and he walks willingly toward death, that will mean the true end of Voldemort."
Snape's face shifted. For the first time, something like horror entered his expression.
"You let him live—only so he could die at the right moment?"
"Don't act so stricken, Severus—how many men and women have you watched die over the years?"
"Many," Snape said, his breathing had turned sharp and uneven, his chest was rising and falling hard. "But since that night, only those I could not save."
He shoved himself to his feet—it was so abrupt that it knocked over a small footstool beside him which scraped across the floor with a grating cry.
His eyes bore into Dumbledore's.
"You used me."
"I don't understand—"
"I spied for you. I invented lies for you. I risked my life for you!" Snape stepped forward, closing the distance between them.
"By your own account—all of it was to keep Lily's son safe—"
He stopped. When his voice returned, it was twisted nearly beyond recognition by pain.
"—and now you're telling me you've been raising him like a pig for slaughter."
Sherlock smiled.
His deduction had held. He had anticipated this scene—had foreseen it in its precise shape, during his last conversation with Dumbledore.
Dumbledore did not smile. He gave Sherlock a long look, then turned back to Snape—who was trembling faintly with the force of his fury—and asked, in a tone of inquiry:
"How touching, Severus. Or has it become something more? Have you actually grown fond of the boy?"
"Fond of him?"
Snape turned around, his eyes were full of contempt and anguish. "How could I possibly be fond of James Potter's son?"
There was no longer any point in concealing anything.
Sherlock already knew it all. What Dumbledore had been unwilling to disclose had just been spoken aloud by someone else—and for that, Snape's opinion of Sherlock had shifted, suddenly and considerably, in the past few minutes.
Snape's wand rose. He cried out, "Expecto Patronum!"
A burst of silver-white light exploded from his wand tip.
It merged swiftly—and a doe stepped forward into the room. Graceful, luminous, immersed with a radiance. She alighted on the floor with barely a sound.
She lifted her head and crossed the room in a single leap.
She moved circling the three of them—Snape in his grief, Dumbledore in his silence, Sherlock in his detached observation—drifting around them in slow, ethereal arcs. With each step, flecks of silver light scattered from her form like blown ash.
At last, her outline thinned. She grew translucent and faded quietly into the stillness of the air.
Only the faintest trace of magic remained.
Dumbledore's gaze had followed her throughout: her arc, her grace, the last thread of her silver light disappearing into the room's shadows.
When he looked back at Snape, he found his eyes bright with tears.
He understood. He had always understood.
It was not possible for Snape to be fond of James Potter's son.
But James Potter's son was also Lily Evans's son.
When James and Lily died at Voldemort's hands, Snape had very nearly lost his will to live. What had drawn him back—what had given him reason to continue—was those eyes. Harry's eyes, identical to Lily's. And the fact that Lily had given her life to protect this child.
He simply hadn't imagined—
"After all this time?"
Dumbledore's voice had gone very soft.
Snape stood motionless. All the strength seemed to have left him.
When he spoke, his voice was low.
"Always."
Watching it all unfold—the Patronus emerging, Snape's revelation, and that single word—Sherlock judged the moment right to speak.
"There is, as it happens, a way to strip the fragment of Voldemort's soul from Harry without killing him."
Both Dumbledore and Snape turned at once, their gazes were meeting on Sherlock with the precision of two aimed spells.
"Did neither of you think of it?"
Sherlock tilted his head, as though the answer were self-evident. "I assumed Professor Lockhart had already provided a rather successful demonstration."
"You mean—the Japanese Healing magic?" Dumbledore said slowly, turning the thought over.
"Obviously. There must be some obscure spells and charms in this world like the Japanese magic. We can search every magical society and check for such soul related spells. However—"
Sherlock pressed his fingertips together, his fingers were meeting at his chin. He spoke quickly.
"Your original plan, I suspect, was to allow Voldemort to kill Harry himself. In doing so, the fragment of soul Voldemort lodged in Harry would be destroyed, leaving Harry's own soul whole and uncorrupted. With all of Voldemort's other Horcruxes already eliminated beforehand, he would lose the last condition of his immortality."
Both Dumbledore and Snape listened with close attention—Snape, in particular, with an intensity that was almost fierce. His secrets were already known; there was no point in hiding any longer. And here was Sherlock speaking aloud the very truths Dumbledore had chosen to withhold.
"If my reasoning is correct, however, you also had something else in mind. I don't know precisely how you intended to arrange it—but your aim was to create a situation in which the fragment was destroyed while Harry himself survived. The difficulty is that the conditions required for such an outcome are extraordinarily precise, and you had no guarantee of success.
"That is why, before this moment, you were unwilling to tell Professor Snape. And far less willing to tell Harry himself.
As I observed long ago: in the pursuit of your ends, you will sacrifice everything—including yourself. But the question remains: why should anyone else be required to become part of that 'everything'?"
Snape's eyes lit up.
Every word of it was true.
This was always how Dumbledore operated—for the sake of a greater good, he would set aside the fates of individuals without hesitation. Including his own.
"I would have told Harry—"
"Yes. You would have told him at the last possible moment."
Sherlock cut him off; his tone was edged with dry amusement. "Because you understand his character perfectly. You have seen through his goodness. You knew that when that moment arrived, he would walk to his death without hesitation.
"If I had never come into this story, I imagine you would have been quietly cultivating that quality in him since his first year.
"No—more precisely: you have been doing exactly that even with me present. I've only interrupted it."
"He's right," Snape said coldly, his voice was settling back into its contempt. "That is precisely the kind of person he is."
"Always."
Dumbledore could only give a rueful smile.
Sherlock had heard Always twice now—but the emotion behind the word was entirely different each time.
Faced with the two sharpest tongues at Hogwarts—one a student, one anything but Dumbledore recognized that his wisest course, in this moment, was silence. No explanations. No attempts at rebuttal.
"If we can safely separate Voldemort's fragment from Harry, only one task remains."
His gaze swept across Dumbledore and Snape in turn.
"Kill Voldemort."
Both men understood what Sherlock meant by that—it encompassed the destruction of every remaining Horcrux. Only then would Voldemort's threat be permanently ended.
"Before any of that, however—Harry still needs to learn Occlumency."
The reason required no explanation.
Dumbledore gave Sherlock a look of surprise.
He hadn't expected Sherlock—after detonating one revelation after another—to bring the conversation around, at the very end, to the exact sentence with which Dumbledore himself had intended to begin.
In that sense, though Sherlock had exposed what Dumbledore had never wished to reveal, he had—in the end—played his part in the same direction.
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