“I do not see why we must do as he says,” said Cordelia. “Open the Portal, Matthew.”

He looked at her for a long moment, and finally the corner of his mouth twitched up in a smile. “You are quite bossy for a girl whose nickname is Daisy,” he said, and went over to the Portal. He placed his palm against the surface, and it shimmered like disturbed water. An image evolved slowly from the center: a great old stone pile of a manor house, set far back from a spreading green lawn. The lawn was overgrown, the black iron gates before the manor thick with twisting briars. They were thrown open, and through the gap Cordelia could see the blank stone face of the house, inset with a dozen windows.

As she stared, one of the windows went up in orange flames. Then another. The sky above the manor house turned a dark, foreboding red.

Matthew swore.

“He’s burning the house down, isn’t he?” said Cordelia.

“Bloody Herondales,” said Matthew, with a sort of epic despair. “I’ll go through—”

“Not alone, you won’t,” said Cordelia, and picking up the skirts of her blue frock, she leaped through the open Portal.

* * *

Though Grace and Tatiana had left it only recently, Blackthorn Manor had the air of a place long abandoned. One of the side doors was unlocked, and James found himself in an empty front hall, lit only by the moonlight pouring in through the great windows. The floor was covered in a thick, feathery dust, and above him hung a chandelier, so roped about with spiderwebs it resembled a ball of gray yarn.

He passed through the empty hall in the quiet of the moonlight and up the sweeping curve of the staircase. As he reached the second floor an oily film of blackness dropped before him: the upstairs windows had been covered with thick black curtains, and no light escaped around their edges.

He lit his witchlight rune-stone; it illuminated the long-dusty passage stretching before him. As he made his way down it, his boots crunched unpleasantly on the floor, and he imagined himself crushing the dried bones of tiny animals as he walked.

At the end of the corridor, in front of a curved wall of covered windows, stood the metal creature: a towering monster of steel and copper. On the wall beside it, as he had recalled, hung a knight’s sword with a wheel pommel, a rusty antique.

James took the sword down and, without a moment’s hesitation, swung it.

It sheared through the torso of the clockwork monster, slicing it in half. The upper part of the body clanged to the ground. James drove down with the sword again, decapitating the creature; he felt half ridiculous, as if he were hacking an enormous tin can to pieces. But the other half of him was full of rage: rage against the meaningless bitterness that had consumed Tatiana Blackthorn, that had turned this house into a prison for Grace, that had turned Tatiana viciously against her own family and all the world.

He broke off, breathing heavily. The clockwork suit was a pile of scrap metal at his feet.

Stop, he told himself, and oddly, he saw Cordelia in his mind, felt her hand on his arm, steadying him. Stop.

He tossed the sword to the ground and turned to go; as he did, he heard a soft explosion.

The pile of shredded metal had caught fire and gone up as if it were tinder. James took a step back, staring, as the fire leaped up to catch at the spiderwebs stretched across the walls: they caught alight like burning lace. James jammed his witchlight back into his pocket; the corridor was already alive with gold and crimson, strange shadows shuddering against the walls. The smoke that rose from the smoldering drapes was thick and choking, emitting an acrid and terrible scent.

There was something hypnotic about the flames as they leaped from one set of drapes to another, like a bouquet being tossed down the corridor. If James stayed here, he would die on his knees, choking on the ashes of Tatiana Blackthorn’s bitterness. He spun and made for the stairs.

* * *

Matthew didn’t bother with an Open rune, just kicked the front door in and raced inside, Cordelia on his heels. The entryway was full of seething smoke.

Cordelia looked around in horror. She could see into a parlor with a high chimneypiece: it had probably once been a grand room but now was covered in dust and mold. A table hung with spiderwebs stood in the middle, still with plates set out: they were covered in rotted food, and mice and blackbeetles ran freely over the surface.

The floor was thickly coated in gray dust; a set of footprints wound up the stairs. Cordelia pointed and jostled Matthew’s shoulder: “That way.”

They started toward the steps: at the top they could see a roaring inferno. Cordelia gasped as James appeared from the heart of the flames, racing down the stairs. He flung himself over the banister as the top steps caught alight, landing in the center of the entryway. He stared incredulously at Cordelia and Matthew.

“What are you doing here?” he demanded over the roar of the fire.

“We came for you, idiot!” Matthew shouted.

“And how were you expecting to get back?”

“There’s a Portal in the greenhouse here that connects to the greenhouse in Chiswick,” Cordelia said. Grace had told her that; it felt like a million years ago. “We can return that way.”

From somewhere deep within the manor came a deep, grinding noise, as of the bones of a giant crumbling to dust. Matthew’s eyes rounded. “The house—”

“Is on fire! Yes, I know!” James shouted. “To the door, quickly!”

It was a short way back to the front entrance. They ran, their feet sending up puffs of dust. They had nearly reached the door—Matthew was over the threshold—when the nearest wall caved in. Cordelia staggered back as a wave of hot air struck her; she saw a plaster-covered wooden beam break free of the wall and sweep toward her, heard Matthew shout her name, and then something struck her from the side. She rolled over in the dust, tangled up with James, as the beam hit the floor with immense force, shattering the parquet.

She choked, gasped, and looked up: James had knocked her out of the way of the falling timber. His body pinned hers to the floor. The color of his eyes matched the flames all around them; she felt his breath, short and sharp, as they stared almost blindly at each other.

“James!” Matthew shouted, and James blinked and got to his feet, reaching down to clasp Cordelia’s hand. The blue of her dress glimmered as she rose, dotted with a thousand tiny glowing points of fire where sparks had landed.

It was not just her dress: everything was fire. In a daze, they raced for the front door, where Matthew stood; he had taken off his velvet jacket and was using it to beat out the flames consuming the threshold. James turned to lift Cordelia in his arms as if they were in some strange, fiery ballet, carrying her over the last burst of flames as they soared up and consumed the front doors of the manor.

The three of them staggered a good distance from the house into the weeds and scraggly grass of the gardens. At last they stopped, and James raised his head to stare at the manor house. It was burning merrily, sending up gouts of black smoke, turning the sky above it to the color of blood.

“You can put Cordelia down now,” Matthew said, a touch of acid in his tone. He was panting, his hair full of soot, his velvet jacket abandoned.

James set Cordelia carefully on the ground. “Your leg…?” he began.

She tried to push back a lock of her hair and found it full of ash. “It’s all right. It’s quite healed,” she said. “Did you, ah…”

“Burn the house down? Not purposely,” said James. His already black lashes were clogged with soot, his face streaked with black.

“It coincidentally burned down while you were in it?” grumbled Matthew.

“If I could explain—”

“You cannot.” Matthew shook his head, scattering ash. “I am completely out of patience. The bank of patience is exhausted! I am not even being extended any patience on credit! You and I and Cordelia are going home, and once home, I will berate you at enormous length. Prepare yourself.”

James hid a smile. “I shall do exactly that. Meanwhile, the greenhouse. We should not linger here.”

Cordelia and Matthew fervently agreed. The three made their way to the greenhouse, which was empty save for a fallen-down grapevine, some bottles, and the Portal itself, which shone like a mirror, reflecting back the glaring red light of the fire.

James placed his hand on its surface. It shimmered, and Cordelia saw, as if at a distance, the Blackthorn house in Chiswick, and beyond that, the glittering skyline of London.

She stepped through.

* * *

The room at the Devil Tavern was cozy, a low fire burning in the grate—Cordelia had thought she might never want to see fire again, but she was pleased to have this one. The Merry Thieves were sprawled all about on the battered furniture: Christopher and Thomas on the old chesterfield sofa, James in an armchair, and Matthew in a seat at the round wooden table.

James had taken off his jacket, which had several burn holes in it, and his shirtsleeves were rolled up. They had all done what they could to clean up when they arrived at the tavern, but there was still soot on his collar, and in Matthew’s and Cordelia’s hair, and the kingfisher-blue dress was, Cordelia suspected, utterly ruined.

Matthew was turning a glass in his hand, looking thoughtfully at the pale amber contents.

“Matthew, you should really drink some water,” said Christopher. “Alcohol won’t help with the dehydration after you inhaled all that smoke.”

Matthew raised an eyebrow. Christopher seemed undeterred—Cordelia had noticed when Christopher first came in that he seemed a little different: less shy and owlish, more assured.

“Water is the devil’s brew,” said Matthew.

Cordelia glanced at James, but he only said, “That is why you are always dyspeptic, Math.” His expression was unreadable. The Mask had slipped briefly at Blackthorn Manor, she thought, when he had saved her life. It was back now.

She wondered if he was thinking of Grace. The pain in her chest had gone from a sharp pain to a dull throb that ached with every heartbeat.

Footsteps sounded on the steps and Lucie burst in, nearly staggering under the weight of a pile of clothes: two suits for James and Matthew, and a plain cotton dress for Cordelia.