Cillian had survived twelve years of exile by trusting three things: the sea lied less than men, dragons never forgot a debt, and anyone offering rescue had usually arranged the danger.
Mara Kelleher was making a determined case for a fourth rule.
Never bind your life to a furious oathsmith.
“You dropped me,” she said.
They lay in a tunnel beneath Dúnmara, half-covered in black ash. The green storm lamp had landed upright three paces away, still burning because apparently it possessed better manners than either of them. Water dripped from the cavern roof. Far above, bells began to ring through the stone.
Cillian rolled onto his back and tested his ribs. Two cracked, perhaps three. “I caught you.”
“After dropping me.”
“We jumped into a dragon shaft.”
“You jumped. I was kidnapped by momentum.”
He looked at her.
Ash streaked one cheek. Her dark hair had escaped its pins and fell across her face in thick waves. The oathmark on her palm glowed through the blood. She looked less like the Crown’s severe last oathsmith and more like a saint who had discovered the church accounts.
“You stabbed the Chancellor’s shadow to an altar,” he said.
“His mantle.”
“The blade went through stone.”
“Good steel.”
“You attempted to rewrite a three-thousand-year-old marriage rite.”
“Poorly maintained law.”
“And now you object to momentum.”
“I contain multitudes.”
The bells quickened.
Cillian sat up. Pain flared along his side, and the bond answered with a hot pull beneath his breastbone. Mara hissed and pressed a hand to her ribs.
They stared at each other.
“That was mine,” he said.
“I gathered.”
“The vow is sharing pain.”
“An impressive feature nobody mentioned.”
“It often waits until after the ceremony.”
“This was not a ceremony.”
“There was blood, an altar, a hostile audience, and at least one elderly relative weeping. It was distressingly traditional.”
Mara’s eyes narrowed. “Was that humour?”
“I have been imprisoned for nine days. Standards weaken.”
She pushed herself to her feet. The bond tugged when she moved away. At four paces, it tightened. At six, pain flickered through the red line under Cillian’s skin.
“Stop,” he said.
“I am measuring.”
“At the cost of my arm.”
“Our arm, apparently.”
She took one more step.
The vow snapped taut.
Blood ran from both their palms.
Mara swore and returned immediately. The pain eased.
“Six paces,” she said.
“Useful.”
“Do not sound surprised.”
“I am surprised you stopped before one of us lost a hand.”
“I need mine for work.”
“And mine?”
She glanced at him. “Decorative, perhaps.”
Despite himself, Cillian laughed.
It hurt badly enough to end the experiment.
Mara crouched beside the storm lamp. Old flight marks had been carved into the tunnel wall: hooked lines showing wind direction, depth, and exits used before the royal keep had been built above the caves. She traced one with a soot-blackened finger.
“You can read these?” he asked.
“My mother taught me.”
“Maeve knew dragon script?”
“She knew everything people later decided she shouldn’t.”
Cillian heard the closed door in the answer and did not press. He had too many locked rooms of his own to resent hers.
The tunnel trembled.
Dust sifted down. Soldiers had entered the shaft above, or Mercer was collapsing passages to bury evidence. Both sounded like him.
“We move west,” Cillian said. “The shaft opens beyond the sea wall.”
Mara picked up the lamp. “You know the tunnels.”
“I grew up here.”
“You were a prince. I assumed princes grew up in rooms with rugs and people applauding their breakfast.”
“My breakfast was often disappointing.”
“A brutal childhood.”
“The tunnels were where I went to avoid becoming my father.”
That silenced her for three steps.
He immediately regretted saying it. Truth had become strangely loose in his mouth since the vow. Perhaps because the ledger had bound them as witnesses. Perhaps because Mara’s presence made pretence feel inefficient.
They moved through the dark, forced close by the six-pace limit. The tunnel descended, then widened into an old dragon road polished by centuries of claws. Bones lay in alcoves along the wall—not human, mostly. Deer. Whale. One enormous horned skull Cillian had been told belonged to a sea bull that once tried to eat a hatchling.
Mara lifted the lamp toward it. “Comforting.”
“You prefer decorated corridors?”
“I prefer corridors where the decoration does not have teeth.”
Behind them, metal rang.
Cillian extinguished the lamp with his fingers.
Darkness slammed down.
Mara’s hand found his sleeve. “Did you just—”
“Quiet.”
Voices carried through the tunnel.
“West passage!”
“Mercer wants them alive.”
“He said the prince alive.”
A pause.
“And the oathsmith?”
A man laughed.
Mara’s grip changed. Not fear. Calculation.
Cillian leaned close enough to feel her breath near his jaw. “There is a split ahead. Left rises to the sea gate. Right descends to the rookery.”
“Which is safer?”
“Neither.”
“Excellent kingdom you had.”
“Left will be watched. Right may contain feral drakes.”
“How feral?”
“They dislike people.”
“I am warming to them.”
The soldiers’ lantern light appeared around the bend.
Cillian took Mara’s wrist and ran.
The bond surged—not pain this time, but awareness. Her balance, her breath, the exact instant she saw the fork ahead. He felt her choose right before she moved.
They turned together.
A crossbow bolt struck the wall where Cillian’s head had been.
The right passage dropped sharply. Mara slid, boots skidding on loose shale. Cillian caught her waist. The contact sent a pulse through the vow, heat spreading across his chest.
She felt it too. Her eyes flashed up.
“Not now,” she said.
“I did not schedule it.”
They reached a stone gate carved with the Struan dragon: wings folded around a crown split down the middle. No handle. No lock.
“Open it,” Mara said.
“I have not been heir in twelve years.”
“Have you tried informing the door?”
The soldiers rounded the upper bend.
Cillian placed his bloody palm against the carving.
Nothing.
“Your kingdom continues to impress,” Mara said.
“Your blood,” he said.
“What?”
“The gate was made after the first blade-vow. It may require both.”
She slapped her palm over his.
The silver button, still clenched in his other hand, grew hot.
The stone dragon opened one eye.
Mara froze. “I dislike doors that look back.”
The gate split soundlessly.
They stumbled through. It closed as the first soldier struck it from the other side.
For one breath, there was silence.
Then dozens of eyes opened in the dark.
Drakes watched from ledges above.
They were smaller than true dragons, each roughly the size of a horse, with narrow bodies and wing membranes pale as scar tissue. Feral, Cillian had said. That had been optimistic. These animals were starving. Their ribs showed. Iron collars hung from several necks, stamped with Mercer’s archive seal.
Mara raised the lamp again, though it remained dark. “Those are not wild.”
“No.”
“What has he done to them?”
Cillian stepped forward slowly. The nearest drake hissed, revealing blackened gums.
“Dragonfire has been failing across the six houses,” he said. “Mercer claimed disease.”
“You think he caused it.”
“I think he has been harvesting ember glands.”
Her face hardened. “For what?”
“Oath alteration requires dragonfire.”
The implication landed between them.
To rewrite succession law, erase vows, alter memory—Mercer would need a source of old flame and someone with oathsmith knowledge.
Mara’s mother had died accused of doing precisely that.
A drake dropped from a ledge.
Cillian moved in front of Mara.
The creature prowled closer, head low. Its collar had cut through scales. Dried blood darkened its throat.
“Do not draw your blade,” he said.
“I have no intention of duelling a malnourished lizard.”
“It understands insults.”
“So do I. We have common ground.”
The drake’s gaze fixed on the silver button.
Cillian opened his hand.
The creature whimpered.
Not aggression. Recognition.
Mara edged beside him. “What is in that metal?”
“A witness alloy. Silver, dragon ash, and blood.”
“Whose blood?”
“I was hoping you knew.”
The drake lowered itself.
Around the rookery, others followed, folding their legs beneath them until the cavern resembled a court of wounded animals kneeling.
The bond pulsed.
A memory struck Cillian—not his own.
Mara at ten, in Maeve’s forge. Nuala barring the door. The veiled woman laying a newborn on the workbench. Maeve cutting her palm over a bowl of silver filings.
For the child, Maeve said.
For the true witness.
The vision shattered.
Cillian staggered.
Mara caught him. “What happened?”
“I saw your memory.”
Her hand dropped away. “No.”
“I saw the forge.”
“You will not enter my mind.”
“I did not choose to.”
“Convenient.”
“There was a child.”
Her face went white beneath the ash.
The soldiers hammered the gate.
Cillian forced himself upright. “Mara, the baby in the memory—”
“I do not remember a baby.”
“Maeve called it the true witness.”
“I said I do not remember.”
The gate cracked.
One of the drakes screamed.
Mara turned toward the sound, grateful for an enemy she could touch. “Can they fly?”
“Not all.”
“Can one carry two?”
“Not far.”
“How far is not far?”
“Beyond six paces.”
She glared.
The gate cracked again.
Cillian scanned the rookery. A narrow black drake stood apart from the others. One wing dragged, but its eyes were clear. No collar marked its throat. Around one foreleg was tied a strip of green wool.
The same green as the infant’s blanket.
He approached.
The drake bared its teeth.
Cillian knelt and placed the button on the stone between them.
“My name is Cillian Struan,” he said in the old tongue. “I owe your kind a kingdom.”
The drake sniffed the metal.
Mara came beside him, close enough that their shoulders touched. “Tell it we need a loan.”
“It understands you.”
“Then it knows I said please in spirit.”
The gate burst inward.
Soldiers flooded the rookery.
The black drake seized the silver button between its teeth and roared.
Every creature in the cavern launched at once.
Chaos became wing and claw. Lanterns shattered. Men shouted. A drake swept a soldier from his feet. Another tore through the archive banner and wrapped three guards in it like badly packed fish.
Cillian grabbed the black drake’s harness. “Up!”
Mara climbed behind him. “There is no saddle.”
“There was no time for upholstery.”
The drake ran toward the cliff opening.
Mara’s arms locked around Cillian’s waist.
The vow flared so violently he nearly lost his grip.
“Still not scheduled,” he shouted over the wings.
“Fly the lizard.”
The drake leapt.
Cold sea air hit them.
Below, the Atlantic smashed white against the cliffs. Dúnmara rose above: towers carved from black rock, bridges strung between spires, dragon chains hanging empty beneath the Crown’s banners. Bells rang from every district. On the highest tower, Mercer’s red signal fire burned.
A bounty declaration.
The drake’s injured wing buckled.
They dropped.
Mara did not scream. She swore with impressive variety and pressed closer.
Cillian shifted his weight, guiding the creature toward a narrow shelf below the western wall. They struck stone hard. The drake rolled. Cillian twisted, taking the impact across his back.
Pain burst through the bond.
Mara gasped as if struck.
They stopped inches from the cliff edge.
For several breaths, none of them moved.
Then Mara crawled toward the drake. “Its wing.”
The membrane had torn along an old scar.
Cillian pushed up, dizzy. “We cannot stay.”
“We cannot leave it.”
“Mercer’s riders will be here within minutes.”
“Then be useful and find us more minutes.”
The command should have angered him.
Instead, something in his chest shifted painfully around the word useful. He had spent twelve years being useful to smugglers, rebels, fishermen, widows, and kings who wanted a prince-shaped weapon but not the man attached. He knew the bargain in Mara because he had made his own version daily.
He stood and scanned the cliff road below.
An old customs track wound toward the abandoned watch house at Carrick Rua. Beyond it lay the villages of the western flight, people who might remember House Struan kindly or might sell him before supper.
A horn sounded above.
Dragon riders emerged from Dúnmara’s upper gate—three Crown wyverns in red armour.
Cillian drew a short knife from his boot.
Mara looked up from the drake. “That will not help.”
“It helps me think.”
“Try thinking faster.”
The black drake nudged her shoulder. The silver button fell from its teeth into her lap.
Blood from the creature’s mouth coated the metal.
The button opened.
It split along a seam too fine to see, revealing a rolled sliver of something inside.
Not paper.
A photograph.
Impossible, Cillian thought first. Then he remembered the glass-catchers of the eastern house, who trapped living images on silver leaf.
Mara unfolded it carefully.
The image showed four people in Maeve Kelleher’s forge eighteen years ago.
Maeve stood beside Nuala.
Young Cillian faced them in his torn prince’s coat.
In his arms was the veiled woman’s child.
The veil had slipped.
Mara made a sound so small the wind nearly stole it.
The woman holding the infant had Mara’s face.
Not similar.
The same eyes. The same mouth. The same stubborn line between the brows.
On the back, written in Maeve’s hand, were six words.
THE QUEEN LIVED. THE DAUGHTER REMEMBERS.
Cillian looked at Mara.
She looked at the approaching riders.
Then she folded the photograph, placed it inside her coat, and stood with the oathblade in her hand.
“Tell me,” she said, voice gone frighteningly calm, “how attached are you to reclaiming your throne?”
Cillian watched red wings descend through the mist.
“Less than I am becoming attached to surviving you.”
“Good.”
She stepped to the edge of the cliff and raised the blade.
“Because I think the throne belongs to me.”
The three riders divided as they descended. One stayed high, crossbow trained on the shelf. The others guided their wyverns lower, using the cliff wind to trap Cillian and Mara against the stone. Their armour bore no house colours, only Mercer’s archive dragon. Men without banners could commit any crime and call it procedure.
Cillian recognised the lead rider. Captain Lorcan Vey, once his youngest sword instructor, now commander of the Crown’s private flight. Age had greyed his beard but not softened the line of his mouth.
“Struan!” Lorcan called. “Stand away from the oathsmith.”
Mara looked at Cillian. “Does he imagine you can?”
“He has always preferred orders to observation.”
Lorcan’s wyvern landed on an outcrop above them. Its claws broke chips from the rock. “Lady Kelleher, the exile has placed you under compulsion. The Crown can sever the bond.”
Mara lifted her marked palm. “The Crown attempted to sever him. Its competence is under review.”
Lorcan’s gaze moved to the photograph in her hand. For the smallest instant, fear showed.
Cillian saw it. So did Mara.
“You know what this is,” she said.
“I know stolen sorcery when I see it.”
“Then your education was expensive and incomplete.”
Lorcan signalled. The upper rider fired.
Cillian shoved Mara down. The bolt passed through the space where her throat had been and struck the wounded drake.
The creature screamed.
Something inside Cillian broke its leash.
He rose with the old royal command on his tongue, a language he had refused to speak since exile. “Vael rath!”
The air answered.
The attacking wyverns faltered mid-beat. Their heads jerked toward him. House Struan blood had once commanded every western flight, but command was not ownership. His mother had taught him the difference before his father taught him to ignore it.
Cillian changed the word. Not kneel. Choose.
“Vael saor.”
Fly free.
Lorcan’s wyvern bucked violently. The captain grabbed its harness. “Hold!”
The animal twisted, snapping at the bit driven through its jaw. Blood sprayed. The second wyvern followed, clawing at its rider’s leg. Above, the crossbowman lost his seat and swung beneath the saddle by one strap.
Mara stared at Cillian. “You could command them all along?”
“No.”
The oathmark did not burn. Truth.
“What did you do?”
“Reminded them command was a choice.”
Her expression changed—not softened, exactly, but made room.
Lorcan fought his mount into stillness. “Your father was right about you. You would break the kingdom to prove you were kinder than its laws.”
“My father broke it because he believed law was whatever survived him.”
“He kept six houses from war.”
“He fed dissenters to dragons.”
“He kept order.”
“There is the anthem of men who never pay for it.”
Mara’s glance flicked toward Cillian, quick and knowing. She had used nearly the same words in the court.
Lorcan drew a long red blade. “Last chance. Release Lady Kelleher.”
Cillian held up their joined marks. “You first.”
Lorcan launched.
His wyvern leapt from the ledge, carrying him down in a rush of red wing. Cillian stepped between Mara and the strike, knife absurdly small against the captain’s sword.
Mara did not remain behind him.
Her oathblade met Lorcan’s weapon with a sound like ice splitting. Black steel bit red. The captain’s blade began to whisper. Every oath it had broken surfaced at once—executions performed without sentence, prisoners transferred without record, drakes harvested under sealed orders. Voices flooded the cliff.
Lorcan recoiled. “Silence it!”
“I did not teach your sword to confess,” Mara said. “You did.”
The wyvern beneath him heard the voices and reared. Lorcan fell hard onto the stone shelf. Cillian kicked the red blade over the edge.
For a moment he stood over the man who had taught him to parry, bleed, and never turn his back on family.
Lorcan looked up. “Do it.”
Cillian could have. Exile had offered many rehearsals for revenge.
Instead he cut the captain’s saddle straps and the cruel iron bit from the wyvern’s mouth.
“Go home,” he told the animal.
It launched into the wind without its rider. The other two followed.
Lorcan watched them leave. The loss on his face was not for military failure. It was the shock of seeing obedience discover an exit.
Mara bound his hands with a strip torn from his own cloak. “Tell Mercer the oathsmith has reviewed his claim.”
Lorcan spat blood. “And?”
She tightened the knot. “Rejected.”
A horn answered from the upper wall. More riders. Too many.
Cillian touched the photograph in Mara’s hand. “Now we go.”
This time she did not argue.