The Hamptons estate was supposed to be our sanctuary, a place where the Sterling family could escape Manhattan's suffocating pace. But like everything else in my marriage, this sprawling beachfront property had become another stage for Sarah's manipulations and Marcus's blind devotion.

I sat on the terrace, a book open but unread in my lap, watching the Atlantic waves crash against the private shoreline. Two weeks had passed since my procedure at Mount Sinai—since I'd lost my sixth child and donated bone marrow to save Sarah. My body was still healing, inside and out, but Marcus had insisted we come to the Hamptons for the weekend. Sarah needed "fresh air" for her recovery.

The autumn breeze carried a chill that made me pull my cashmere wrap tighter around my shoulders. From my vantage point, I could see Sarah lounging by the infinity pool, her thin frame draped across a chaise lounge despite the October temperature being too cold for swimwear. She'd been watching me, I realized, her eyes following my movements with that calculating gaze I'd come to recognize.

I returned to my book, determined to ignore her presence. That's when I heard the splash and the scream.

"Help! Marcus! MARCUS! SHE PUSHED ME!"

My head snapped up to see Sarah thrashing in the deep end of the pool, her arms flailing dramatically as she screamed accusations between gasps. I froze, confusion and disbelief paralyzing me. I hadn't moved from my seat, hadn't been anywhere near the pool.

The terrace doors burst open as Marcus charged outside, his face contorted with fury. His eyes locked on Sarah struggling in the water, then darted to me, instantly assigning blame without question.

"What have you done?" he roared, rushing past me to the pool's edge.

"I didn't—I was sitting here the whole time," I stammered, rising to my feet. "Marcus, check the security cameras. I never left this spot!"

He ignored me completely, reaching to pull Sarah from the water. She clung to him, her body shaking with exaggerated sobs as she buried her face against his chest.

"She pushed me, Marcus," she whimpered. "She waited until you went inside and then she pushed me. She knows I'm weak from the treatment."

Marcus's eyes were glacial as he turned to me, Sarah still wrapped in his protective embrace. "The cameras don't matter. I know what you're capable of."

The injustice of it burned through me. "Marcus, that's impossible. I was sitting right here! You can see from the house—"

"Enough!" His voice cut through the air like a whip. "You want to play games with my sister's life? Fine. Let's see how you like the water."

A chill that had nothing to do with the autumn air ran through me. "What?"

"Get in." He pointed to the pool, his expression unrecognizable. This wasn't my husband anymore—this was Sarah's puppet, dancing to her strings. "Get in the pool, Isabella."

"Marcus, it's freezing—"

"GET IN!" he roared, causing even Sarah to flinch in his arms.

Slowly, I removed my wrap and stepped toward the pool in my silk blouse and linen pants. My heart hammered against my ribs as I descended the steps into the frigid water. The cold stole my breath instantly.

"All the way in," Marcus commanded. "Swim laps. Ten of them."

"I can't swim well—you know that," I pleaded, the water now at my waist, my clothes heavy and clinging.

"Should have thought of that before pushing someone who's fighting for her life," he said coldly.

I saw Sarah's face over his shoulder, the ghost of a satisfied smile playing at her lips before she buried her face against him again with a theatrical sob.

The water enveloped me completely as I pushed off, my limbs already stiffening with cold. I struggled through the first lap, then the second, my waterlogged clothes dragging me down, my lungs burning. By the third lap, my muscles were cramping painfully. Marcus watched from the edge, unmoved by my obvious distress, while Sarah had mysteriously recovered enough to sit up and observe my punishment.

Halfway through the fourth lap, my strength gave out. My head slipped beneath the surface, water flooding my nose and mouth. I flailed, panic consuming me as I sank deeper, the world above distorting through the chlorinated blue.

The last thing I saw before darkness crept in was Marcus, still standing at the pool's edge, making no move to save me.

I still had nightmares about drowning.

Two weeks after the pool incident, I would wake gasping for air, my lungs burning as if still filled with chlorinated water. If not for Daniel, the groundskeeper who had seen everything from the garden shed and pulled me from the depths while Marcus stood watching, I might not be here at all.

Tonight, the Sterling dining room glittered with crystal and silver, a celebration dinner for Sarah's temporary remission. The bone marrow transplant—my forced sacrifice—had bought her time, though the doctors were careful to call it just that: temporary. Not that anyone acknowledged the source of her second chance.

I sat rigid in my high-backed chair, picking at the roasted duck on my plate while conversation flowed around me. The dining table was filled with Marcus's business associates and family friends, all raising glasses to Sarah's health.

"You look beautiful tonight," whispered Evelyn Reed, the attorney seated beside me. She was new to Marcus's circle, brought by a mutual friend. "Are you feeling alright?"

I managed a tight smile. "Just tired."

Her eyes held mine a moment too long, as if she could see the bruises beneath my carefully applied makeup—not physical ones, but the kind that marked a soul. I looked away first.

At the head of the table, Marcus rose, commanding attention as he always did. "I'd like to propose a toast," he announced, lifting his crystal flute. "To Sarah, whose strength continues to inspire us all."

The guests murmured their agreement, raising their glasses. I reached for my water instead.

"Wait," Sarah's voice cut through the moment, her eyes finding mine across the table. "Isabella should join with champagne. This is, after all, partly thanks to her... donation." Her lips curved into what guests might mistake for gratitude, but I recognized the malice behind it.

Marcus's gaze shifted to me, expectant. Challenging.

"I don't drink champagne," I said quietly. "I have a sulfite allergy."

Sarah's eyes widened with feigned concern. "Oh, I completely forgot! How terrible of me." The performance was flawless—the caring sister-in-law, momentarily forgetful of a potentially dangerous allergy.

"One sip won't hurt," Marcus said, his tone light but his eyes hard as he moved behind my chair. He placed a full flute before me, his hand heavy on my shoulder. "For Sarah."

The table had gone uncomfortably quiet. I could feel the weight of curious stares.

"Marcus," I began, my voice barely audible, "you know what happens when—"

His fingers dug into my shoulder, silencing me. "A toast," he insisted, lifting the glass to my lips. "To new beginnings."

I tried to turn my face away, but his other hand caught my jaw, holding me firmly as he tipped the flute against my mouth. The champagne burned as it touched my lips, a few drops sliding past them despite my resistance.

"There," he said, satisfaction evident in his voice as he released me and returned to his seat. "Was that so difficult?"

The first symptoms began almost immediately. A tingling sensation spread across my lips, followed by an uncomfortable tightness in my throat. I reached for my water, taking desperate gulps as the familiar panic set in.

"Isabella?" Evelyn's concerned voice seemed distant now. "Are you alright?"

I couldn't answer. My airway was constricting rapidly, each breath becoming a labored wheeze. I clutched at my throat, my eyes wide with terror as I looked to Marcus—a reflexive plea for help that my rational mind knew was futile.

He watched impassively from across the table, making no move to assist as I rose unsteadily to my feet. Sarah's expression was a mixture of fascination and satisfaction, poorly disguised behind a hand pressed to her mouth in mock horror.

The room tilted sideways as my knees gave out. I collapsed onto the parquet floor, gasping like a fish out of water, my vision tunneling to pinpoints of light.

"Someone call an ambulance!" Evelyn's voice cut through the chaos, sharp with authority.

"She's just being dramatic," I heard Sarah say, her voice floating somewhere above me.

"If you don't call 911 right now," Evelyn snapped, "I will, and I'll make sure every medical professional knows exactly how this happened."

Only then did I hear Marcus move, barking orders for someone to fetch my EpiPen from the bathroom cabinet upstairs. As consciousness began to slip away, one thought crystallized with perfect clarity: my husband had been willing to watch me die before a stranger forced his hand.

Some choices, once made, can never be undone.