AI The first standing stone rose from the bracken like the knuckle of something buried alive.
Rory stopped at its foot. The stone was oak, or had been once: its bark had hardened into ridged black wood, wide enough to swallow a car, and its crown vanished among the branches overhead. Two more stood beyond it, half hidden by thorn and ivy. They made a crooked line through the trees, though the path between them had no right to exist. Richmond Park stretched behind Rory in all its familiar winter dreariness—mud, bare branches, the dull gray sky—but through the gap between the stones she saw color. A spill of blue and gold and white, bright as midsummer.
She touched the silver chain at her throat. The thumbnail-sized crimson gem rested cold against her skin.
“Is this the boundary?” she asked.
Isolde stood on the other side of the first stone. She had arrived without Rory hearing her approach, as she always seemed to do. Her silver hair fell almost to her waist, untouched by the wind. Beneath it, her pale face held an expression that could have been amusement or sorrow.
“A door is a boundary that has learned to open,” she said. “A boundary is a door that has forgotten why.”
Rory glanced at Nyx. The Shade stood beside her in a tall, wavering silhouette, edges stirring as though smoke moved beneath their skin. Their violet eyes gave off a faint light.
“Useful,” Nyx murmured.
Isolde’s mouth tilted. “The useful answer is yes.”
Rory had expected some physical sensation when she crossed. A snap of cold, perhaps. A tug in her stomach . Instead, she took one step between the old oaks and the world simply changed its mind.
The air softened. The damp, metallic smell of winter earth fell away, replaced by crushed leaves, rain-wet stone, and something sweet she couldn’t name. Warmth brushed her face. Not summer heat, exactly, but the remembered warmth of sunlight on skin . Behind her, Nyx’s shadow stretched backward over the path, black against the gray London afternoon. Then it slipped through the gap and the gray vanished.
Rory turned.
There was no line of stones behind her now. Only a green slope, dense with ferns and white flowers, and a scatter of slender birch trees that gleamed as if their bark had been painted with moonlight. The sky above them was a deep, impossible blue. No sun showed. The light seemed to come from everywhere.
For a beat she forgot to breathe.
Then a bee drifted past her ear, gold and large as her thumb. She flinched. It hummed toward a bank of flowers that bloomed in a riot of color beneath the winter branches.
“Those are snowdrops,” Rory said, because they were the first thing her mind could pin down. Their white bells nodded over the grass.
“Among other things,” said Isolde.
Rory looked closer. The snowdrops had tiny blue veins in their petals, and among them grew flowers shaped like stars, cups, and little curling horns. None were familiar , though some seemed almost familiar , like names she had once heard in a dream and misplaced upon waking.
“Don’t pick anything,” Isolde said.
“I wasn’t going to.”
“You were thinking it.”
Rory pulled her hand away from the flowers. “I was thinking about whether they’re poisonous.”
“Some are. Some are not. One will tell you the name of the person you most regret losing.”
Rory’s fingers curled at her sides.
Isolde had not said which one.
Nyx leaned close to a cluster of small red blooms. They bent toward the Shade, their petals opening and closing like mouths. “Do they speak?”
“Not to the living.”
“That seems rude.”
“They are flowers,” Isolde said. “They have no obligation to be polite.”
Rory moved on before the red blooms could decide to test the distinction. The grass underfoot was springy and dry despite the damp smell in the air. She could hear water somewhere ahead, but also the low murmur of voices. The voices had no words. They rose and fell in overlapping tones—laughter, argument, a child singing somewhere very far away.
She glanced back again. Nothing of London remained. No path, no railings, no distant traffic. The grove enclosed them with trees whose branches leaned inward, knitted together high above. Beneath the canopy, daylight gathered in pools and thinned between the trunks.
“How far does this go?” she asked.
“Far enough,” said Isolde.
“Another useful answer.”
“Some questions are snares dressed as lanterns.”
Rory almost smiled. She was beginning to understand that Isolde’s riddles weren’t ornaments. They were warnings with their edges filed down.
They followed the sound of water. A narrow path wound through the flowers and into the trees. It looked worn, but when Rory studied it she couldn’t find a single footprint in the soft earth. Not even Isolde’s. The half-fae walked ahead of them, white hair drifting over her shoulders, yet the grass lifted untouched where she passed.
Rory’s own boots left prints. Nyx left none. The Shade’s feet met the ground, but their outline blurred at every step, and the earth seemed reluctant to remember them .
“What lives here?” Rory asked.
“Many things.”
“Could you narrow it down?”
“Not without narrowing the truth.”
A branch creaked overhead. Rory looked up. Something pale clung to it—a bird, perhaps, long-bodied and featherless, its head turned upside down to watch them. It had no visible eyes. When Rory blinked, it was gone .
The water grew louder. They came upon a stream running over smooth black stones. It crossed the path without a bridge. The water shone copper-gold, though the sky above was blue. Tiny silver fish moved against the current, their bodies flashing in and out of sight.
Rory crouched at the bank. The stream reflected her face clearly, but the reflection did not move when she moved. It stared back at her with bright blue eyes and a small scar on its left wrist.
Rory jerked away.
The reflection rippled. In the water, her double raised a hand and pressed its palm to the surface from beneath.
“Don’t answer it,” Isolde said.
“I wasn’t going to.”
“Many have said so.”
The image blurred. The fish turned together, a single glittering body, and shot upstream. Rory stood, pulse ticking hard in her throat.
Nyx had not come near the stream. Their violet gaze lingered on the trees beyond it. “Something follows us.”
“Everything follows you,” Isolde said. “You carry a night within you.”
Nyx’s head angled toward her. “And you?”
“I carry what I cannot put down.”
Isolde stepped across the stream. The water parted around her boots without wetting them. Rory found a fallen tree and crossed on its slick trunk, arms held out for balance. Nyx went through the water. For one instant, their shape broke apart into a smear of darkness beneath the surface; then they gathered on the far bank, taller than before.
Beyond the stream, the trees changed. Their trunks twisted into spirals, their bark furrowed with deep grooves that resembled script. Rory couldn’t read it, but her gaze kept catching on the marks as if the lines shifted just before she could make sense of them. Here the flowers grew thickest, spilling over roots and climbing the trunks. Their colors had sharpened: violet so deep it was nearly black, green like glass, petals of orange that held a little light within them.
The air felt heavier. Rory became aware of her own weight , the pressure of her coat on her shoulders, the beat of blood in her fingers. She could hear Nyx’s shadow moving, a faint dry rustle like paper being crumpled in another room.
Then she saw the clearing.
It opened between the trees without warning. At its center stood a circle of ancient oaks, not trees now so much as pillars, their trunks immense and hollowed by age. Wildflowers covered the ground between them. A flat slab of pale stone lay in the middle, veined with silver. Above it, the branches formed a roof that showed no sky at all.
Rory’s chest tightened. The place seemed to wait for them.
“Is this the heart of the grove?” she asked.
“A heart beats,” Isolde said. “This is the place where the rhythm changes.”
Rory looked at the slab. Its surface held a shallow groove, a crescent carved into the stone. She had the sudden, unnerving sense that the shape was meant for her wrist. Her thumb found the small scar there, a pale crescent from a childhood fall.
The pendant warmed against her chest.
Rory froze. She closed her hand around the crimson gem through her shirt. It gave one faint pulse , then another. The warmth was slight but unmistakable.
“Is there a Hel portal here?” she asked.
Isolde’s lavender eyes shifted to the pendant. “The stone remembers its birthplace.”
“That isn’t an answer.”
“No,” Isolde agreed. “It is not.”
Nyx moved between Rory and the slab. Their shadow stretched across the flowers, and every bloom beneath it folded shut. The carved crescent brightened. The silver veins in the stone lit from within, drawing lines that branched outward like roots.
Rory took a step back. “What is it doing?”
“Listening,” said Isolde.
“To what?”
“To the thing you brought. To the thing that brought you.”
The pendant throbbed once, warm as a pulse . Rory’s fingers tightened around it. “I didn’t ask it to.”
“Few doors ask to be opened.”
The stone gave a soft, deep note. The sound passed through Rory’s bones. Somewhere beyond the clearing, the distant voices stopped.
Every leaf stilled.
Rory’s other hand went to the slender Fae-forged blade at her belt. Moonsilver chilled her palm through the sheath. She drew it an inch. The blade gave off a faint, pale gleam beneath the living canopy.
At once, the grove exhaled.
The branches stirred overhead. Flowers reopened in a rolling wave, from the stone to the tree line. The pressure in Rory’s chest eased, though the pendant remained warm. On the slab, the silver lines dimmed to nothing.
Nyx’s violet eyes stayed fixed on the darkness between the trees. “It was not alone.”
“No,” Isolde said.
Rory looked toward the place where the voices had been. In the shadow under the twisted oaks, something moved with the careful patience of a thing that had no need to hurry.
She had entered the grove expecting a hidden place, a pocket folded away from the world. She had not expected it to feel so vast, or so attentive. The flowers leaned toward her as if straining to hear . Beyond them, the stream sang to itself beneath the trees. Behind them, the way back had disappeared.
Rory slid the blade fully free. Its cold steadied her.
“Which way?” she asked.
Isolde turned toward the darker path. “Where the silence is deepest.”
Rory stared at the trees. Her pulse thudded against the pendant, or the pendant thudded against her pulse . She could no longer tell which.
Then she followed.