Chapter 146: Theory of the Heart-Flame

Edward returned from the tower with the damaged silver disc and more questions than answers. The device had raised a useful barrier, but only once, and only because Daphne already knew how a Shield Charm should feel. That limitation mattered.

He did not want to make weapons that replaced skill. He wanted an emergency aid that helped a trained caster hold one familiar defensive shape while frightened, injured, or protecting someone else.

The distinction became the first line in a new notebook.

His school restrictions kept all experiments supervised. Professor McGonagall approved morning research in the library and two weekly sessions in an unused Charms classroom. Nothing could contain a curse, draw from another person, or activate without a deliberate word and touch. Every prototype remained with a professor between sessions.

Edward began with wandlore. His walnut wand held a phoenix feather and responded readily to his fire, but response was not the same as obedience. When anger tightened his grip, flame grew quickly and spread poorly. Protective intent often made the same flame curve around allies, yet fatigue could still break that control.

Professor Flitwick listened to Edward's theory without praising it into certainty.

"Emotion influences magic," he said. "It does not behave like lamp oil. You cannot pour grief into a box and expect a stronger Shield Charm to come out."

Edward opened his notebook. "Then what changes when intent changes a spell?"

"Attention, choice, and the way a wizard shapes power. Sometimes emotion clarifies those things. Sometimes it ruins them."

Flitwick arranged three wooden practice balls on his desk. He asked Edward to cast the same cushioning charm under different conditions. First Edward cast while calm. The nearest ball landed softly after a short fall. Then Flitwick startled him by dropping two at once. Edward saved one and sent the other bouncing into a bookshelf. On the third attempt, Edward knew which ball covered a fragile glass vial. His charm spread wider around that target but ignored the harmless one.

"The spell did not become objectively greater," Flitwick said. "Your intention changed what you protected and what you neglected."

That result narrowed Edward's design. A useful object should preserve a chosen shape, not intensify whatever emotion happened to seize its bearer. The silver disc could remember the curve and direction of a barrier. The wizard still had to provide magic, identify the threat, and speak the release phrase.

They tested the idea with chalk, parchment, and harmless blue light. Edward drew a simple ward representing a forward-facing shield. Flitwick corrected two strokes that would have allowed the edge to curl inward. The revised mark held the blue light in a shallow arc until Edward stopped concentrating.

"Now frighten me," Edward said.

"No."

The refusal was immediate.

Flitwick removed his spectacles and polished them. "Surprise has a place in advanced training with consent and proper safeguards. You are recovering from a real attack. We will not turn that into an excuse to reproduce panic for an experiment."

Edward wrote that down too.

He next studied how a wand recognized its owner. Family texts used grand language about blood and destiny, but practical records described subtler bonds: years of handling, repeated spellwork, the nature of the wood, and the magical substance within it. Borrowed wands could function, though often with reduced precision. Stolen wands introduced questions of allegiance no silver device could safely imitate.

That ruled out a universal amplifier. Any object attached to a wand might interfere with a relationship Edward did not understand. A separate talisman, attuned during a calm supervised exercise, was safer.

Professor McGonagall challenged the word attuned.

"What exactly would the object retain?" she asked.

"A recognition of the bearer's magic and the shape of one defensive ward."

"Not a memory?"

"No."

"Not an emotion?"

"No."

"Not authority over the bearer's wand?"

"No."

"Then state that in the design rather than relying on implication."

Edward revised the page. The talisman would hold no thoughts, memories, or fragment of identity. Its recognition mark would answer only to a voluntary sample of ordinary magic and could be erased by the bearer or a qualified adult. If recognition failed, the device would remain inert.

The idea reminded him of his mother's magic, but he resisted the temptation to generalize from it. Isabella's sacrifice had been unique, dangerous, and inseparable from Edward's survival. It was not a pattern for school equipment.

He called the design Heart-Flame because intent began in the person, not the metal. The name risked sounding more mystical than the device deserved, so beneath it he added a plain description: a single-purpose emergency ward for a trained bearer.

Ancient Runes offered a way to hold the shield's geometry. Alchemy might provide a material that accepted a brief charge without retaining anything personal. Neither field belonged to Edward alone, and improvising from family books had already led him beyond safe limits once.

He requested a meeting with Professor Babbling rather than entering the Restricted Section unsupervised.

Her classroom smelled of chalk and warmed stone. Rubbings from Norse memorials covered the walls, each accompanied by translations and notes about uncertain readings. Professor Babbling studied Edward's sketch for several minutes.

"You have drawn a symbol, not a sentence," she said.

Edward looked at the neat curve he had been proud of. "It held light."

"So does a bottle. That does not mean it explains what should happen when struck from the side, when held backward, or when the bearer loses concentration."

She placed three rune tiles beside his drawing. One established direction. One limited duration. The third ended a working when its condition failed.

"Ancient Runes are not decorative commands," she continued. "Meaning comes from relationship and order. If you shrink them until those relationships vanish, you have produced attractive scratches."

Edward crossed out the smallest version of his mark.

With Babbling's help, he rewrote the ward as a short sequence: recognize a consenting bearer, accept a limited charge, face away from the bearer, unfold a barrier, then end safely when the charge was exhausted. There was no automatic retaliation. A shield that decided whom to burn would require judgment the object did not possess.

By the end of the session, the design occupied more parchment and promised less power. Edward considered that progress.

Professor Babbling signed the page to show what she had reviewed and circled every unresolved assumption. The material might crack. A recognition mark might answer to someone with similar family magic. Repeated use might distort the rune sequence. Heat could damage clothing even if it did not pursue an attacker.

"Test failure first," she said. "Success is the result most likely to make a young inventor careless."

Edward left carrying no prototype, only an approved question for the next supervised session: could a small silver setting and clear crystal hold the shape of one brief ward, then become harmless when emptied?

He filed one copy of the question with McGonagall and another with the alliance archive. Both copies named the supervising professors and stated that silence from them meant no permission, not implied approval.

The Flame Serpent Alliance would have to wait for an answer. For once, Edward did not resent the waiting.

The next session would begin only after every reviewer answered. An unanswered question remained a stop condition, however promising the design looked on parchment.