The penthouse was dark when Sebastian finally came home. It was past midnight.

Catherine was sitting in the living room, on one of the white armchairs, staring out at the city lights. She hadn't turned on a single lamp.

The front door opened, bringing with it the noise of the hallway and the scent of him. He walked in, tossing his keys on the console table. He flipped the light switch.

The sudden brightness was blinding. Catherine blinked, her eyes adjusting.

"Why are you sitting in the dark?" Sebastian asked, his tone irritable. He looked tired, but it was a satisfied kind of tired. The kind that comes after a long, productive day.

Catherine didn't move. "Why does she have my bracelet?"

Sebastian sighed. He walked to the bar, loosening his tie. "We're really doing this? Now?"

"Yes. Now."

He poured a drink. "It's a bracelet, Catherine. Half of New York owns one. It's a status symbol. It seemed appropriate for a VP."

"You gave it to me as an apology for missing our anniversary," Catherine said, her voice low. "You gave it to her as a welcome gift. On the same day. From the same order."

"It was convenient," Sebastian said, shrugging. "My assistant ordered them. It saved time."

"Am I just a line item on an expense report to you?" Catherine asked. "Is our marriage just logistics?"

Sebastian slammed the glass down on the counter. Liquid sloshed over the rim.

"You're being paranoid," he accused, turning to face her. "You're looking for reasons to be unhappy."

"She is your ex-girlfriend, Sebastian. She is working in your office. She is wearing your jewelry."

"She is qualified!" Sebastian shouted. "And she has no one else! Do you understand that? Her father died bankrupt. She has no family. She tried to end her life when I left her three years ago!"

The secret hung in the air between them.

Catherine stared at him. So that was it. The guilt anchor.

"She tried to kill herself?" Catherine whispered.

"Yes," Sebastian said, his voice dropping, thick with shame and responsibility. "Because I chose to marry you. I broke her, Catherine. I owe her safety. I owe her stability."

He gestured around the penthouse. "You have the ring. You have the house. You have the status. You have... everything. You are strong. She is broken."

"Be the bigger person, Catherine," he pleaded, though it sounded more like a command. "Stop competing with a woman who has nothing."

Catherine stood up. Her legs felt weak. The unfairness of it choked her.

I am broken too, she wanted to scream. My body is failing me. I am scared every time I look in the mirror.

But she couldn't say it. Not now. Not when he had just declared that Serena's fragility was the reason he prioritized her. If Catherine told him she was sick, she would just be another broken thing competing for his pity. And Serena had a head start on pity.

"I'm broken too," she whispered.

Sebastian didn't hear her. He was already looking at his phone, checking a text message.

"I'm sleeping in the guest room," he announced. "I have an early flight tomorrow. I don't want to argue all night."

He walked past her, his shoulder brushing against hers. He didn't even pause.

Catherine gripped the back of the sofa to stop herself from falling.

"The bigger person," she repeated to the empty room. She let out a laugh that sounded manic, sharp and jagged.

She walked to her design studio at the back of the apartment. It was her sanctuary. She turned on the drafting table light.

She grabbed her charcoal stick, but then paused. She needed this preserved. She needed it safe. She picked up her tablet instead, opening the digital sketching app. She began to draw furiously, the stylus scratching against the glass. She didn't draw a gown for a gala. She drew something dark, sharp, structural. A dress that looked like armor. A dress for a funeral.

She wrote The Mourning Collection at the top of the digital canvas. As she worked, the files automatically synced to the private family cloud server—the one Sebastian insisted they use for "security."

Her phone buzzed on the table.

She picked it up. A text from an unknown number.

She opened it. It was a photo. Grainy, old, scanned from a yearbook or a polaroid.

It was Sebastian and Serena, maybe ten years ago. They were at a college party. Sebastian was looking at Serena with an expression of raw, unguarded adoration. It was a look of total surrender.

Below the photo was a caption:

He never looked at you like that.

Catherine stared at the screen until it went black.

The Metropolitan Museum of Art Gala—the MET Gala—was not optional. It was a battlefield in couture.

Catherine wore her own design. It was a midnight blue velvet gown, high-necked, long-sleeved, with an open back that revealed the sharp ridge of her spine. It was stunning, elegant, and somber. It hid her thinness and highlighted her bone structure.

Sebastian looked dashing in a tuxedo, but his eyes were constantly scanning the crowd.

They walked the red carpet together. Flashbulbs popped.

"Mr. Vanderbilt! Look here!"

"Catherine! Who are you wearing?"

Sebastian placed a hand on the small of her back for the photos, but his touch was mechanical.

Then, Serena arrived.

She was late. Calculatedly late. She wore white. A flowing, chiffon Grecian number that looked dangerously like a wedding dress. She looked ethereal, fragile, and angelic.

Sebastian's hand dropped from Catherine's back the moment he saw her.

The gala was a blur of fake smiles and air kisses. Catherine spent most of it sitting at the table, sipping water, feeling the exhaustion seep into her marrow.

When the night finally ended, the three of them ended up at the VIP exit at the same time.

"We can share the car," Sebastian offered immediately.

"We'll take the private elevator," he instructed the security team.

They stepped into the small, plush elevator. Sebastian, Catherine, and Serena. The atmosphere was suffocating. The scent of Serena's perfume and Sebastian's cologne mixed into a cloying cloud.

The doors closed. The elevator began to descend.

Clunk.

A violent jolt shook the car.

The lights flickered and died.

Pitch blackness swallowed them.

For a second, there was absolute silence.

Then, Serena screamed.

"No! No, no, no! I can't breathe!" Her voice was high-pitched, terrified.

Sebastian moved instantly. Catherine heard the rustle of his tuxedo.

"Serena? I'm here. I've got you."

Catherine stood frozen against the back wall. The darkness pressed in on her. Her heart began to race. Thump-thump-thump.

She was terrified of the dark. It was a childhood trauma—locked in a closet by a cruel nanny for hours. Sebastian didn't know. He had never asked why she always slept with a nightlight.

"Sebastian?" Catherine whispered, reaching out.

Her hand brushed his arm in the dark.

He pushed past her. Hard.

"Find the flashlight on your phone, Catherine!" he barked, his voice harsh. "Don't just stand there!"

He dropped to the floor. Catherine heard him gathering Serena into his arms.

"Look at me, Serena. Just breathe. Count to ten with me. One... two..."

Catherine fumbled for her clutch, her hands shaking so badly she dropped it. She fell to her knees, groping on the floor until her fingers found the cold metal of her phone.

She turned on the flashlight.

The beam cut through the darkness.

It illuminated Sebastian sitting on the floor, his back against the wall. Serena was straddling his lap, clinging to his lapels, her face buried in his neck. He was stroking her hair, whispering soothing words into her ear.

He looked up at the light. He saw Catherine holding it.

He looked annoyed.

"Call help," he ordered. "She's spiraling."

Catherine looked at the emergency button. She pressed it. Nothing. She checked her phone. "No signal."

"Just keep the light on her," Sebastian commanded. "Focus, Serena. I'm not going anywhere."

"Don't leave me," Serena sobbed, clutching him tighter.

"I won't. I promise."

Catherine leaned back against the cold metal wall. She pulled her knees up.

She watched her husband hold another woman. She watched him be the protector, the rock, the savior.

She sat in the dark, just outside the circle of light.

He doesn't know I'm scared, she realized. He doesn't know because I never screamed. I just endured.

She slid down until she was sitting on the floor too, but on the opposite side of the car.

For twenty minutes, they sat like that. Sebastian murmuring love to Serena. Catherine silent, invisible, holding the flashlight steady even as her arm burned with fatigue.

Suddenly, the power returned. The overhead lights buzzed on.

The elevator began to move.

The doors opened on the ground floor.

A team of firefighters was waiting.

What they saw was a tableau of a marriage: A man on the floor holding a weeping woman in white, and a woman in blue standing alone in the corner, holding a phone like a weapon, her face a mask of absolute desolation.

The next morning at SV Corp, the "Elevator Incident" was the only thing anyone was whispering about. The rumors were already flying: Did you hear? The CEO carried the VP out. Where was the wife?

Catherine was summoned to Sebastian's office at 10:00 AM. She had brought her tablet, determined to show him the new sketches, to prove she was an asset to the company, not just a wife to be tolerated.

She walked in, her back straight, her left hand clutching the device.

Serena was there. Of course she was.

She was sitting on the sofa, looking pale and "brave." She wore a vintage Dior dress.

"Catherine," Serena said softly. "I wanted to apologize for last night. I just... the darkness... it triggers my PTSD."

Sebastian was standing by the window. He nodded approvingly. "See? She's trying to make amends."

Catherine felt numb. "It's fine." She walked to the desk and placed the tablet down, the screen displaying her latest design: The Mourning Gown.

"Let me pour you some coffee," Serena offered, standing up shakily. "It's the least I can do."

She walked to the coffee service on the sidebar. She lifted the heavy silver carafe.

Her hand "trembled."

It was theatrical. A slight shake that suddenly became a violent jerk.

The carafe tipped.

A wave of scalding hot coffee splashed across the desk.

Directly toward the tablet.

Catherine didn't think. She lunged.

She threw her left hand out to block the liquid, trying to save the device and the work on the screen.

The boiling coffee hit her hand and wrist.

Sizzle.

Pain, white-hot and blinding, seared through her nerves.

A few drops splashed onto the hem of Serena's skirt.

"Oh!" Serena gasped, jumping back. "My vintage Dior!"

Sebastian turned from the window. He saw the spilled coffee. He saw Serena clutching her skirt.

He rushed—straight to Serena.

"Are you burned?" he asked frantically, kneeling to check her legs. "Did it touch your skin?"

Catherine stood by the desk. The pain was absolute. She bit the inside of her cheek so hard she tasted iron. Instinctively, she shoved her burned hand behind her back, hiding the injury. She wouldn't scream. She wouldn't give Serena the satisfaction.

"It's just the fabric," Serena cried, tears welling up instantly. "But I'm so clumsy! I ruined it!"

"We'll replace the dress," Sebastian soothed her. "It's okay. You're okay."

He finally looked up at Catherine.

"Catherine," he said, his voice impatient. "Help her clean this up. Call the cleaners."

Catherine stared at him. Her hand throbbed violently behind her back, the skin already blistering in the silence.

"I can't," she said, her voice tight.

"What?" Sebastian frowned.

"I have to go."

She didn't wait for an answer. She grabbed her coffee-stained tablet with her good hand and walked out of the office. She bypassed the first aid kit on the wall. She needed to get away before she passed out.

She ran into the executive bathroom and locked the door.

She dropped the tablet on the counter and turned on the tap, thrusting her burning hand under the cold water.

The relief was instant, but the tears finally came. They mixed with the tap water swirling down the drain.

She looked at her reflection in the mirror.

"I am invisible," she whispered.

It wasn't a complaint. It was a diagnosis.