The Lost Sister

The safe deposit box at First National Bank was long and narrow, a coffin for secrets. Sarah turned the key, the mechanism clicking with a satisfying weight. She pulled the box out, setting it on the polished mahogany table of the private viewing room.

Maya stood by the door, her backpack slung over one shoulder, watching the hallway. "Hurry, Mom."

Sarah opened the lid.

Inside were three things. A stack of adoption papers. A USB drive. And a small, velvet pouch.

Sarah picked up the papers first. The edges were yellowed, the type fading.

*Certificate of Live Birth.*

*Name: Rachel Elizabeth Vance.*

*Date of Birth: November 14, 1988.*

*Mother: Eleanor Vance.*

*Father: Thomas Jenkins.*

Sarah flipped to the next page. The adoption decree.

*Adoptive Parents: Samuel and Martha Thorne.*

"Thorne," Sarah whispered. "Dr. Thorne. The one who signed the competency affidavit."

"He adopted her?" Maya asked, stepping closer. "The doctor who helped Elena?"

"He didn't just help her," Sarah said, her voice cold. "He was part of the family."

She picked up the USB drive. It was silver, sleek, modern. Out of place among the aged documents. She plugged it into her laptop.

A single video file.

She clicked play.

The screen flickered to life. A young woman sat in a chair, facing the camera. She had dark hair, bright blue eyes, and a scar on her cheek. She looked like Sarah. Like Chloe. Like all of them.

But her eyes were different. They weren't empty like Chloe’s. They were burning.

*"My name is Rachel,"* the woman said. *"And if you're watching this, I'm already gone."*

Sarah leaned in.

*"I know about the others,"* Rachel continued. *"I know about Julian. And Chloe. And the one who died."*

She leaned closer to the camera.

*"But you don't know about me. You think I was just another spare. Another battery for the empire. But I wasn't. I was the fail-safe."*

Rachel held up a vial. It was filled with a clear liquid.

*"Elena thinks the cure is in the blood,"* she said. *"But it's not. It's in the code. I cracked it. I fixed the error."*

She smiled, a grim, humorless expression.

*"I didn't just escape, Sarah. I stole the formula. And I hid it. Not in a bank. Not in a cloud."*

She tapped her temple.

*"I hid it in me."*

The screen went black.

Sarah stared at the blank laptop. "She has the cure," she whispered. "In her DNA."

"Where is she?" Maya asked.

Sarah reached into the box and pulled out the velvet pouch. She opened it.

Inside was a locket. Identical to the one Agnes had given her. But this one was engraved.

*R.E.V.*

And inside, folded into a tiny square, was a receipt.

*Two Rivers Storage. Unit 404. Burlington, Vermont.*

"She's not in Boston," Sarah said, standing up. "She's in Vermont. Near the clinic."

"But the clinic burned down," Maya said.

"Rachel didn't go to the clinic," Sarah said. "She went to ground. She's waiting for us."

She grabbed the papers, the drive, and the locket.

"We have to go," she said. "Before Elena's lawyers figure out where the real asset is."

They left the bank, merging into the afternoon traffic of downtown Boston. Sarah drove with a singular focus, her mind racing. Rachel was the key. Not just to the past, but to the future. If Elena found her...

Her phone buzzed.

It wasn't a text. It was a call. From an unknown number.

Sarah hesitated, then answered.

"Hello?"

"Sarah Jenkins?" A woman's voice. low, guarded.

"Who is this?"

"This is Chloe," the voice said.

Sarah nearly dropped the phone. "Chloe? Where are you? Are you safe?"

"I'm at the safe house," Chloe said. "With the police. But... someone was here."

"Who?"

"A man," Chloe said. "He said he was a friend of yours. He said he was looking for Rachel."

Sarah’s blood ran cold. "What did he look like?"

"Tall," Chloe said. "Dark hair. A scar on his cheek."

Sarah gripped the wheel. A scar. Like the one on Rachel’s face in the video.

"Did he give a name?"

"He said his name was Caleb," Chloe whispered.

Sarah slammed on the brakes, pulling the car onto the shoulder.

"Caleb is in jail," she said. "I just saw him."

"This man wasn't in jail," Chloe said. "He had a badge. He said he was FBI."

Sarah looked at Maya.

"It's not Caleb," she said. "It's a hunter."

"And Sarah?" Chloe added, her voice trembling. "He knew about the locket."

Sarah looked at the velvet pouch on the seat next to her.

"How?"

"Because he has the other half," Chloe said. "He showed it to me."

Sarah hung up.

"What is it?" Maya asked.

"We're not the only ones looking for Rachel," Sarah said, putting the car in gear. "And whoever he is, he's one step ahead."

She merged back onto the highway, heading north.

"We have to get to Vermont," she said. "Fast."

But as she accelerated, she glanced in the rearview mirror.

A black sedan was following them. Three cars back. Keeping pace.

Sarah tightened her grip on the wheel.

"Hold on," she told Maya. "We're going to take a detour."

She yanked the wheel, cutting across three lanes of traffic to the exit ramp. The sedan followed, tires screeching.

"Who is it?" Maya screamed.

"I don't know," Sarah said, watching the black car close the distance. "But I'm going to find out."

She reached into her bag and pulled out the gun she had taken from the clinic. One round left.

"Get ready," she said.

She slammed on the brakes.

The sedan swerved to avoid hitting them, skidding sideways.

Sarah opened her door and stepped out, the gun raised.

"Who are you?" she shouted.

The driver’s door opened.

A man stepped out. Tall. Dark hair. A scar on his cheek.

He raised his hands.

"Don't shoot," he said.

He reached into his jacket.

Sarah tensed her finger on the trigger.

He pulled out a badge.

"FBI," he said. "Special Agent Vance."

Sarah froze.

"Vance?"

"Julian Vance," the man said. "But you can call me Jack."

He lowered his hands.

"I'm Caleb's twin."