It was raining. A cold, miserable New York drizzle that soaked into the bone.

It was Sienna's twentieth birthday.

She stood on the sidewalk outside the Sullivan estate. Her bags were on the wet pavement. Eleanor had followed through on her threat. She was locked out.

Inside, through the glowing windows, she could see them celebrating. Tiffany, her stepsister, was holding up a dress. It was a knock-off of one of Sienna's own designs. The irony burned in her throat.

She could call Seraphina. She could have a secure extraction team here in ten minutes. But that would mean admitting defeat. That would mean leaving the Kensington documents behind in Robert's safe.

She turned her back on the house. She had nowhere to go that wouldn't blow her cover.

She walked for miles, the water plastering her hair to her skull. She ended up in the Meatpacking District, outside a discreet, unmarked door. The Crow.

She slipped inside. The bass of the music thumped in her chest. The bartender, a man with a scar running through his eyebrow, slid a drink toward her without asking.

"Happy Birthday, Ghost," he muttered.

He slid a manila envelope under the glass.

Sienna opened it. It was a genealogy report. Kensington. The name jumped out at her. Her mother wasn't a nobody. She was a disowned Kensington.

That meant the Sullivans weren't just cruel; they were thieves. They had been hiding her heritage to keep her trust fund.

She finished the drink in one swallow. The sadness evaporated, replaced by a cold, hard rage.

"Thanks, Marco."

She walked back out into the rain.

Julian sat in the back of his Rolls Royce, staring out the window. The charity gala had been suffocating. Ivy had been clinging to his arm, wearing the necklace he had just bought for three million dollars.

Eternal. That was the name of the piece.

He had bought it because it reminded him of the girl at NYU. Sharp edges. Hidden depths.

"Stop the car," Julian ordered.

The driver braked smoothly.

Julian looked out at the sidewalk. A figure was walking alone in the rain, head bowed against the wind. No umbrella. Just a soaked grey hoodie.

He recognized the posture. The defiant set of the shoulders.

He rolled down the window.

"Get in."

Sienna stopped. She looked at the car. She looked at him.

"I'm wet," she said.

"I have leather seats. They wipe clean."

She hesitated. She could walk away. She could disappear. But the file in her bag burned against her hip. The Kensingtons were connected to the Vanderbilts. If she wanted answers, she needed access.

She opened the door and slid into the warmth of the car.

The silence in the car was heavy.

Sienna shivered. The heat was on, but the chill was deep inside her.

Julian watched her. She looked like a drowned rat, but she held herself like a queen in exile. He took off his tuxedo jacket. It was warm from his body, smelling of expensive wool and that faint tobacco scent.

He tossed it into her lap.

"Put it on before you ruin my upholstery."

Sienna pulled the jacket around her shoulders. It engulfed her. The warmth was instant, overwhelming.

"Where are you going?" he asked.

"I don't know," she said honestly. "The library is closed."

"Home?"

"Not an option."

Julian's phone buzzed. He answered it on speaker.

"Julian!" It was his sister, Elena. She sounded frantic. "Leo just fired his fifth tutor. He hacked the school district's server and changed his grades to emojis. You have to do something."

Julian rubbed his temples. "I'll handle it."

He hung up. He looked at Sienna. He remembered the books she was holding that day on campus. Advanced Game Theory. Macroeconomics.

"You're a student at NYU. Business?"

"Yes."

"Grades?"

"4.0."

Julian studied her. She was desperate. He could smell it. But she wasn't begging.

"My brother is fifteen. He is a genius, and he is a nightmare. He needs a tutor who can outsmart him."

Sienna looked at him. "And?"

"And you have nowhere to go. I have a guest house. You tutor Leo. I give you a roof and a salary."

Sienna's mind raced. The Vanderbilt estate. The archives. It was the perfect cover.

"I'm expensive," she said.

Julian laughed. It was a dry, dark sound. "I'm a Vanderbilt. Try me."

"Triple the standard rate. And nobody knows who I am. I'm just the help."

"Done."

The car turned smoothly, heading toward Long Island. Sienna leaned back into the leather seat, pulling his jacket tighter. She was walking into the lion's den.

Good thing she was the lion tamer.

The Vanderbilt estate was less a home and more a fortress. Stone walls, iron gates, and shadows that seemed to stretch too long across the lawns.

Sienna stood in the grand foyer. Her sneakers squeaked on the marble.

"This way," the butler said, his nose wrinkled in distaste at her attire.

He led her to the East Wing. The door to Leo's room was covered in caution tape.

Sienna pushed it open.

The room was dark, lit only by the glow of six monitors. Techno music blared. A boy sat in a gaming chair, his back to her.

"Get out," Leo said without turning around. "I'm busy."

Sienna walked over to the wall. She found the master breaker for the room.

She flipped it.

The music died. The screens went black.

"Hey!" Leo spun around. He was lanky, with messy hair and Julian's sharp eyes. "Do you know how much progress I just lost?"

"You can recover it if you know the kernel patch sequence," Sienna said calmly. She grabbed a piece of chalk and wrote a complex algorithm on his blackboard wall. "Solve for X. You have three minutes. If you fail, I delete your Steam account."

Leo stared at the board. "That's... that's doctoral level calculus."

"Two minutes, fifty seconds."

Leo scrambled for a marker. He started writing furiously.

Upstairs, in the study, Julian watched the security feed.

"She turned off his power," Maverick said, sounding impressed.

Julian zoomed in on the screen. He watched Sienna leaning against the desk, her arms crossed. She looked bored.

"She's not teaching him," Julian murmured. "She's breaking him."

That night, dinner was a formal affair.

Ivy had let herself in, uninvited, wearing a dress that was too tight and laughing too loud. She sat in the lounge, swirling a martini, waiting for Julian to acknowledge her. When Sienna walked in, wearing a simple black dress provided by the staff, the room went quiet.

"Oh," Ivy said, looking Sienna up and down with disdain. "The tutor. I didn't realize the help was allowed in the family wing."

"Julian invited me," Sienna said, bypassing the lounge to take a seat at the far end of the dining table.

"It must be overwhelming," Ivy followed her, leaning against the doorframe. "All this... luxury. Compared to what you're used to."

Sienna picked up her fork. "Luxury is a state of mind, Miss Vance. Desperation, however, is a perfume. And you're wearing too much of it."

Julian entered just in time to hear the retort. He choked on his wine, covering his mouth with a napkin to hide a smirk. He didn't offer Ivy a seat.

After dinner, Sienna escaped to the gardens. She needed air. The house was full of ghosts, and she was adding one more.

She walked toward the old oak tree near the perimeter wall.

A twig snapped behind her.

She spun around. Julian was there. He moved silently for a big man.

He stepped closer, forcing her back until her shoulders hit the rough bark of the tree. He placed a hand next to her head, boxing her in.

"You have a sharp tongue, Sienna."

"I thought you hired me for my brain."

"I'm starting to wonder," he leaned down, his lips inches from her ear, "what else you're hiding under those oversized clothes."