CHAPTER 8: BENEATH SAINT ISIDORE
Lucía stared at the old man in the laboratory coat.
Every part of her wanted to reject what she saw.
Her father had died before she was born.
Her mother had said it in a hundred ways over the years.
Tomás was gone.
Tomás never held you.
Tomás would have loved you.
The man standing in the underground chamber was not a memory, a photograph, or a name whispered beside a grave.
He was alive.
He took one step toward her.
“Lucía.”
She backed away until the wet wall stopped her.
“Do not call me that.”
His face tightened with pain.
“It is your name.”
“You do not know my name.”
“I chose it.”
Mateo closed the steel door behind him and locked it.
The chamber contained medical equipment, filing cabinets, and a bank of computers powered by a low generator.
A narrow bed stood behind a glass partition.
Lucía saw restraints attached to the frame.
She looked at Mateo.
“You brought me to another prison.”
“I pulled you out of a drainage shaft before you drowned.”
“Then open the door.”
“I cannot do that until we talk.”
Tomás raised both hands.
“Mateo, give us a moment.”
Mateo laughed softly.
“You disappeared for seventeen years, Doctor.”
“You do not get private moments now.”
Lucía turned toward the computer monitors.
One displayed the layout of the lower clinic.
Red lights marked police movement near the operating theater.
Another showed Alejandro carrying Sofía through the tunnel while Detective Ruiz covered them.
Sofía was alive.
Lucía pressed one hand to the screen.
Relief shook her entire body.
“Let me speak to them.”
Mateo shook his head.
“Rafael is monitoring every active signal.”
“If we transmit, he finds this chamber.”
“He already knows it exists.”
“He knows a laboratory exists.”
“He does not know where Elena moved it.”
Lucía looked around.
“Elena built this?”
Tomás answered.
“She converted an old hydrotherapy room after she discovered the trials.”
“She needed a place outside Mateo’s surveillance.”
Mateo did not object to the accusation.
Instead, he leaned against a cabinet and watched them.
Lucía faced Tomás again.
“Why did my mother tell me you were dead?”
“Because I asked her to.”
The answer was immediate.
She struck him.
The sound snapped through the chamber.
Tomás accepted the blow without moving.
“My mother worked two jobs while Marisol was sick.”
“She begged strangers for money.”
“She believed you were in a grave.”
“I was trying to protect you.”
“From what?”
“From the people who owned my work.”
Lucía laughed, but there was no humor in it.
“You created Kestrel Nine.”
Tomás looked toward the floor.
“I created a compound intended to prevent sudden cardiac death in children.”
“Marisol was born with a condition no available medicine could control.”
“I believed I could save her.”
“You tested it on other children.”
“Not at first.”
“But eventually.”
“Yes.”
The single word carried more guilt than denial could have held.
Tomás moved toward the glass partition.
“The early formula stabilized heart rhythm in controlled doses.”
“Alejandro’s father, Esteban Ríos, financed the research.”
“He wanted a military version that could increase tolerance to shock, blood loss, and extreme stress.”
“When regulators refused human testing, he moved the project through Saint Isidore.”
“Poor families signed forms they could not understand.”
“Doctors were paid to mislabel complications.”
“And you stayed,” Lucía said.
“I stayed because Marisol was getting worse.”
“You used her too.”
Tomás closed his eyes.
“The final dose killed her.”
Lucía had imagined the moment of her sister’s death thousands of times.
She had blamed doctors, executives, and faceless men behind polished desks.
She had never imagined her own father standing beside the syringe.
She turned away before rage made her attack him again.
Mateo spoke from the cabinet.
“Tomás spent the next decade trying to create an antidote.”
“Do not make him sound noble,” Lucía said.
“I did not say he was noble.”
Mateo’s voice became colder.
“I said he was useful.”
Tomás looked at him with open hatred.
“You kept me alive because you sold the poison.”
“I kept you alive because Kestrel Nine escaped our control.”
“Private clients began modifying it.”
“Politicians used it to imitate natural deaths.”
“Business rivals disappeared without suspicious autopsies.”
“By the time Elena found the archive, the network reached six countries.”
Lucía felt the scale of it expand beyond the hill.
Sofía’s poisoning was not merely an inheritance plot.
The archive could destroy people who had spent years believing themselves untouchable.
“Why does the archive need Sofía?” she asked.
Tomás approached a computer.
“Elena encrypted it using a biometric key.”
“She used data from Sofía’s newborn cardiac scan because no one could reproduce it without access to the original hospital file.”
“Rafael stole the file after Elena died,” Mateo said.
“But Elena changed one value.”
“The missing value is hidden in the song.”
“The fifth verse,” Lucía said.
Tomás nodded.
“When the moon has lost its face, follow light beneath the stone.”
“That leads to the archive chamber, not the value.”
“There is another line.”
“Sofía did not sing another line.”
“Because Elena never taught it to Sofía.”
Tomás looked directly at Lucía.
“She taught it to Ana.”
Lucía thought of her mother’s missing silver key.
“Where is my mother?”
Tomás’s expression became guarded.
Mateo answered.
“Rafael moved her three days ago.”
“You knew she was alive.”
“I knew after Valeria located her.”
“Where?”
“A private nursing facility outside the city.”
“Rafael kept her sedated under a false name.”
“He believed she might remember the final line.”
Lucía moved toward Mateo.
“If he has her, why does he need me?”
“Because Ana has not spoken in four years.”
Tomás pressed a control on the computer.
A medical file appeared.
Ana Hernández had suffered brain damage after the apartment fire.
She drifted between partial awareness and silence.
Notes described rare episodes in which she sang fragments of a melody.
The most recent entry ended with six words.
Thirteen shadows guard the father’s sin.
Lucía read the line twice.
“What does it mean?”
Mateo looked toward Tomás.
The old scientist did not answer.
Lucía understood.
“The thirteen towers.”
Tomás lowered his head.
“The storage columns contain the patient archive.”
“One column contains a separate file Elena created about the Ríos family.”
“What file?”
Tomás hesitated.
Mateo pushed away from the cabinet.
“Tell her.”
“The legal authorization that moved Kestrel Nine from laboratory research into Saint Isidore carried two signatures.”
“Esteban Ríos signed first.”
“The second signature was added three years later when the program expanded.”
Lucía felt a new fear take shape.
“Whose signature?”
Tomás looked toward the monitor showing Alejandro holding Sofía.
“Alejandro’s.”
Lucía shook her head.
“He refused authorization.”
“Elena wrote that he refused.”
“I saw the document myself,” Tomás said.
“He signed the transfer.”
“He may not have understood what it was.”
“Or the signature was forged.”
Mateo laughed quietly.
“You still want him innocent.”
Lucía turned on him.
“And you want him guilty because it hides what you did.”
“I want the archive opened.”
“Then you can destroy the evidence against you.”
“No.”
Mateo stepped closer.
“I want to release it.”
“Why should I believe you?”
“Because I am the reason Elena had time to hide it.”
Tomás shook his head.
“You gave her three hours because you believed Rafael would recover the files afterward.”
Mateo’s expression hardened.
“You do not know what I believed.”
A warning light flashed on the computer.
Someone had entered the lower drainage system.
Tomás switched camera feeds.
Rafael moved through the tunnel with four armed men.
He carried a black case.
The case contained enough shaped charges to collapse the hidden chamber.
Mateo looked toward the steel door.
“He found us.”
Lucía searched for another exit.
“There has to be a route.”
Tomás opened a cabinet and removed a small injector.
“This is the current antidote formula.”
“It may protect Sofía from the poison still in her system.”
Lucía took it.
“You said she was safe.”
“I said she survived.”
“Kestrel Nine can return when the body is under stress.”
“Get this to her within six hours.”
The generator lights dimmed.
A metallic impact struck the outer wall.
Rafael’s men were cutting through.
Mateo opened a floor hatch.
A ladder descended into darkness.
“You go first,” he told Lucía.
“Where does it lead?”
“To the archive.”
Tomás grabbed her wrist before she stepped down.
“There is something else you need to know.”
The cutting sound grew louder.
“What?”
“The signature was not the only thing Elena found.”
Tomás’s eyes filled with fear.
“The day before she died, she discovered Alejandro had visited Saint Isidore in secret.”
Lucía stared at him.
“That is impossible.”
Lucía searched his face for any sign that he enjoyed the damage his words caused.
She found only exhaustion.
That did not make him truthful.
Mateo had built an entire empire by mixing facts with the explanation most useful to him.
Tomás had spent years inside that empire.
Lucía understood that every revelation now required proof.
She placed the antidote injector inside the waistband of her wet trousers and tightened her grip on the data drive.
Whatever Alejandro had done at Saint Isidore, Sofía could not be made to pay for it.
May you like
Tomás released her.
“Ask him why he came.”
