Chapter 150: Burke's Terms

Burke Manor occupied the sheltered end of a narrow Devon valley. Thorn hedges concealed its boundary from the road, and every gate carried a brass plate warning visitors not to Apparate inside the grounds.

Kreacher brought Edward to the outer marker and remained beside him while a squat iron bird inspected Sirius's letter. The bird pecked the signature, announced that it was genuine, and unlocked the gate with a disapproving click.

Illfulcom Burke met them in a stone workshop detached from the house. He was broad, grey-haired, and dressed in an apron scarred by acid and heat. Professor Babbling's introduction lay open on his desk.

"You asked me to inspect a defensive trinket," Burke said. "Your guardian authorized three visits. You will not touch my stores without permission, and nothing leaves until I say it is stable enough to carry."

Edward set down both padded cases. "Agreed."

Burke ignored the working prototype at first. He laid out each failed setting, matched it to the register, and asked Edward to explain what had happened. Whenever the answer drifted into theory, Burke returned to observation.

"The crystal cracked after the fourth practice bolt."

"Did you see the crack begin?"

"No."

"Then write that you found it after the fourth bolt. Do not claim a sequence you did not observe."

By noon, red ink covered the margins. Burke objected to the phrase harmless failure because a hot fragment could blind someone. He rejected Edward's assumption that an intact silver cage guaranteed an intact crystal. Most severely, he found that a partial break in the recognition seal might leave enough of a sample to identify the bearer while preventing the erasure charm from working.

Hermione had predicted the danger. Knowing that made the mistake less surprising, not less serious.

Burke finally opened the prototype's case. "What is this supposed to achieve?"

"One short barrier after a recognized bearer touches the seal and speaks the release phrase."

"Why a crystal?"

"It holds the prepared charm until release."

"Why silver?"

"It conducts the trigger through the setting."

"Why does the setting contain seven rune groups when the effect needs four?"

Edward pointed to stabilizers, a wear indicator, and an emergency vent.

"The vent is another path through which the spell can escape," Burke said. "The indicator is another thing that can lie. You have made a simple shield depend on ornaments."

"They were safeguards."

"Complexity can hide danger as easily as it hides beauty."

Burke did not offer a secret ingredient or an ancient formula. He gave Edward a slate, four pieces of chalk, and an instruction to draw the shortest possible route from recognition to release. Every branch had to answer one question: if this part failed, would the object remain inert?

The first diagram failed because a damaged recognition seal could bypass the bearer check. The second failed because a broken timing rune might prolong the barrier unpredictably. The third used two separate paths that could activate together.

Edward worked until his wrist cramped. Burke watched without helping.

"Alchemy is not the art of persuading materials to obey a clever idea," the old man said. "It is the art of discovering how they will betray it."

On the second day, they dismantled the prototype. The crystal came free without damage, but dark residue beneath the silver lattice showed that repeated release had heated one edge more than the others. Burke sealed the residue in a vial and required Edward to record its location before cleaning anything.

They built no replacement. Instead, they tested materials separately.

A plain quartz sliver held the prepared shield cleanly but fractured under a sharp impact. Moonstone resisted impact and blurred the release. A thin silver band carried the trigger quickly, then warped after repeated heating. A heavier band stayed true but made the object too large to wear safely near the throat.

Edward proposed phoenix feather powder as a stabilizer.

"No," Burke said.

"It worked in the Hogwarts tests."

"It was present when a test worked. That does not prove it caused the success, and you cannot trace what it does after the barrier collapses. Use a material whose function you can measure."

Burke allowed a trace of powdered pearl to smooth the transfer because its effect could be compared against an untreated sample. Both versions sat behind a thick ward while Edward triggered them with a wooden lever. The treated piece released a cleaner barrier. On the next attempt, it fused itself to the test stand.

Edward entered both results.

At dusk, an owl found him in Burke's kitchen. Sirius's note was brief. The border witnesses disagreed about dates and descriptions, but both remembered a cold voice near the forest. One of Dumbledore's contacts had found animal tracks circling an abandoned shelter without entering it. Sirius would observe for two more days and would not cross the marked ridge.

Edward read the sentence about the ridge three times.

Burke poured tea without asking about the letter. "If you are too distracted to notice a change in colour, we stop."

"We stop," Edward agreed.

Kreacher returned him to Grimmauld Place each night. Edward copied the revised notes while the house slept. He did not enter the cellar workshop, despite knowing exactly where the family kept silver and crystal. Burke's conditions applied outside Devon as well as inside it.

On the third visit, Burke examined Edward's newest diagram. It used a breakable recognition bead attached to the outside of the setting. Removing or crushing the bead severed the trigger completely. The prepared shield rested in a separate quartz sliver surrounded by a plain silver band. Four carved groups controlled recognition, direction, duration, and release. There was no automatic response and no secondary attack.

"What happens if the duration mark fails?" Burke asked.

"No barrier. The release path stays open."

"What happens if the direction mark fails?"

"No barrier."

"If the crystal cracks?"

"The silver band parts at the scored seam and disconnects the trigger."

"If the recognition bead is damaged?"

"The bearer must replace it under the witnessed attunement procedure."

Burke marked one problem. The scored seam could pinch skin or scatter a sharp fragment when it broke. Edward changed the band into two nested arcs that separated inward against a layer of dragonhide.

They made three empty settings and broke them deliberately. One caught on the test cord. One opened properly. The third refused to separate until heated beyond any temperature a wearer should encounter.

"One success is not a design," Burke said.

Edward resisted the urge to defend it. "Then the hinge goes."

The next version used no hinge. A silk cord held the crystal in a shallow silver cradle. If the crystal cracked, the cord burned through and dropped the pieces into a small leather pouch below it. The arrangement looked less impressive than the first prototype.

Burke approved an inert impact test.

The crystal broke. The cord parted. Every fragment landed in the pouch, and the recognition bead remained outside it. Edward checked the floor, his gloves, and the warded stand before writing the result.

"Again," Burke said.

They repeated the test with five empty crystals at different angles. Four behaved correctly. One fragment pierced the pouch.

Edward added a second layer of dragonhide rather than declaring the trial nearly successful.

That evening another note arrived from Sirius. He and the two contacts had found the abandoned shelter, but someone had disturbed it recently. The tracks led deeper into the forest beyond the agreed ridge. They had withdrawn to the border and sent the evidence to Dumbledore.

Edward let out a breath he had not noticed holding.

Burke read nothing over his shoulder. "Good news?"

"Evidence, and a decision not to chase it."

"Rarer than good news."

The old alchemist granted one final visit. If the next containment test passed, they would prepare a single shield in the revised setting. It would be a test object, not an alliance issue and not proof that the design was finished.

Edward packed the scarred crystals beside the intact ones. The failures would return with him. Anyone asked to judge the Heart Prism deserved to see what it had cost to make its limits visible.