Prologue

The Debt of Blood

The air was heavy and humid with the smell of wet dirt.
Grace came back to herself in pieces: first the stone under her palms, then the cold wall pressing close, finally the ache in her bones. The Hunger roaring through her. Like fire poured into an empty vessel, it stripped thought and language leaving only need.

Her hand went to her pocket on instinct — empty. No phone. They took everything. Nothing but stone and iron.

Rust, mildew, and old blood flooded her senses, sharp enough to sting even a deadened tongue.

Darkness pressed in on all sides. It was total, until her vision began stitching itself back together - outlines in charcoal, then shapes, then the faintest shimmer along iron bars.

A cell. Underground. Iron bars at the front, stone at her back. A prison built for things that should never see daylight.

Grace pushed herself upright, every movement sending a wave of hollow pain through her body. Two days without blood should have been tolerable. In London, it would have been… unpleasant, irritating. This was something else. A gnawing, feral depletion that felt like her own veins were being unwound.

“What did they do to us…” she whispered, voice rough.

The cell was thick with the scent of blood, but there was nothing living in it. No heartbeat. No warmth. Just her, the stone, and the iron.

But as she forced her eyes wider, Grace suddenly realized that she wasn’t alone.

Beyond the bars, the darkness resolved into a ring of other cages around a central pit — a crude circle of iron and stone. In the cell to her left, something lay curled on the floor, as still as a husk. She squinted, letting her sight sharpen.

Grey hair, cropped short. Worn suspenders crisscrossed over a once-checkered shirt. Skin waxen and brittle, like something left too long in the sun.

“Viktor?” she breathed.

Her chest tightened. A part of her remembered the sting of his betrayal, the way his choices had led them into that church, into that trap. But her anger felt thin now, burned away by the agonizing hunger.

“Viktor,” she tried again, louder.

No answer. He lay so still he might have been dead… or locked in a deepest sleep of her kind.

From across the circle, a weak voice rose, — familiar and frayed.

“Grace… is that you?”

Relief lanced through her so sharply it almost hurt.

“Elysabeth?” Grace crawled closer to the bars, fingers wrapping around cold iron.

On the far side of the pit, another cell. A woman in a torn red dress slumped against the wall, hair tangled, lipstick smeared like an old crime scene. The leader of the Lumina House — always immaculate, always composed — now looked as though someone had tried to erase her and given up halfway.

Even distressed, she carried a kind of ruined grace.

“How are you?” Grace asked, the question sounding ridiculous even to her.

Elysabeth gave a short, breathless laugh.
“Starving,” she said. “And not in any way I understand.”

They tried to put words to it.
Failed.
The hunger wasn’t like before. Not the dull ache of restraint, not the manageable depletion they both knew. This was deeper. Hollower. The kind that came when a vampire was almost emptied — when nothing remained but base instinct and the Hunger.

Grace glanced toward Viktor’s cell again.
“They’ve done something to us,” she said quietly. “This isn’t natural. It feels wrong.”

“The Seer-Weavers always knew how to twist life,” Elysabeth murmured. “Perhaps they finally sold that talent to the wrong buyer?”

A name rose in Grace’s mind like the bloom of a bruise. Crimson Dawn. The ones who didn’t leave witnesses.

Her last clear memory was of the church — the illusion of safety in the old stone, the way Vienna’s Shadow Head had left the city. Hide in consecrated ground, she’d thought. Wait it out. A neat little plan that had seemed so terribly clever.

Instead, it had delivered them straight into the hands of Vienna’s newest monsters.

“Bloody hell,” she muttered. “We were safer in the open.”

But her mission had been falling apart before that. A mission ordered by the Shadow Head of London, wrapped in promises of power and position in Vienna. Logan’s voice in her ear, whispering of prestige, of the influence she’d finally earned.

All of that looked absurd now, rattling around in this cage.

Footsteps cut through the stillness.

Two silhouettes appeared at the edge of the chamber — big, broad-shouldered, moving with the dull confidence of those who believed nothing inside these walls could touch them. Each dragged a limp body: a young man, a young woman. Both human.

The scents hit Grace like a blow to the gut.
Warm skin. Fresh blood. Fear.

The Hunger inside her exploded upward, smashing against her ribs.

They didn’t speak. They unlocked the cells with flat efficiency, tossed the bodies inside—the man into Grace’s cage, the woman into Elysabeth’s — and stepped back.

The man hit the floor beside her in a sprawl, a broken puppet of limbs and breath.

“No,” Grace rasped. “No, I can't —”

She tried to move away. Tried to brace against the back wall, nails biting into the stone. The Hunger surged, a tide tearing loose whatever fragile human restraint she had left.

For a second, she held.

Then the Hunger won.

She was on him in a blur, fangs piercing skin, hot blood flooding her mouth. It was like being thrown back into her first nights — everything red and choking and desperate. She drained him too fast. There was no finesse, no careful control. By the time sense returned, the body beneath her was an empty shell, cooling on the stone.

Across the circle, Elysabeth had turned her face away. Even now — even starving — she was still resisting, jaw tight, hands dug into her own arms, holding a line Grace had already lost.

“I’m sorry, Grace,” Elysabeth whispered. “Truly. I know how hard it is to come back from that.”

Grace wiped the back of her hand across her mouth, blood smearing her skin.

“I’ve never…” Her voice shook. “I’ve never lost control like that. What’s happening to us, Elysabeth? And where the hell are we?”

Elysabeth shook her head slowly.

“I can only guess we’re in the hands of those rebellion offshoots who came for us in the church. Crimson Dawn. They wanted trophies.”

Grace swallowed hard, the fresh blood sitting heavy and unsatisfying in her stomach, as if poured into an empty shell.

“We have to get out,” she said. “We need Viktor awake. If he can reach Emily or Arthur, he can warn them we’re trapped. If anyone from our side survived what happened at the park…”

A memory flashed — not an image, but a sound: howls rolling over the rooftops from Wienerberg Park, gunfire stitching the night, clouds above the forest glowing with every explosion.

She hadn’t witnessed the Vigil withdrawing toward the treeline; she only knew they were meant to go, leaving the city’s defence to her and Elysabeth.

While the others marched into the dark to confront the enemy, they had been tasked to stay behind, guarding Vienna’s heart.

“If anyone is still alive out there,” she finished softly, “they might come for you.”

Elysabeth let out a breath that might have been a laugh or a sob.

“If anyone is still alive, they’re not calling me. Seraphine hasn’t checked in since the Vigil left for the park.”

“There has to be a way,” Grace insisted, more fiercely than she felt.

She scanned the chamber again, forcing herself to look past the blood, past the body she'd drained. More cells. Some empty. After two vacant cages on Elysabeth’s side, she caught another shape on the floor — taller, leaner. A suit, even crumpled, that had clearly been expensive.

“Elysabeth,” she said. “We’re not alone.”

She nodded toward the far cell.

Elysabeth squinted into the dark.

“I don’t recognise him,” she said slowly. “Wait — there’s a stake in his chest. He’s one of us. They’ve pinned him like an exhibit.”

Grace focused on the body. The man lay half-turned to the wall, black hair just long enough to curl near his ears. Strong brows. The line of his jaw had that particular severity she’d seen a thousand times in London’s old money. On his wrist, a watch caught the faint light — the glint of an exclusive piece.

Recognition hit like a blow.

“That’s impossible,” she whispered. “How…?”

She was back in London, signing off on a private order, Logan leaning on the bar with that conspiratorial smile.

A gift, he’d said. For an ally. Someone important to the House.

She had personally handled the delivery as Logan had failed to collect it himself.

Or so she’d thought.

“I know that watch,” she murmured. Her throat tightened. “I arranged the order, years ago. Logan insisted it be from our most exclusive collection. A gesture for his… mysterious ally.”

“Grace,” Elysabeth said quietly, “who is he?”

Grace’s voice dropped to a rasp.

“Christopher Hill,” she said. “A Silhouette of our House. Rumour says he works for someone high ranking in one of the inner circles. I’ve only seen him a few times in London. Never close enough to speak, of course. I didn’t rank anywhere near his orbit.”

Her eyes strayed back to the stake pinning him to the stone.

“And now,” she added, bitterness curling through the words, “it seems the one man who was meant to be my ally in Vienna has been here the entire time… nailed to the wall and waiting.”