BURIED UNDER ICE WATER: The Billionaire Stepmother’s Deadliest Secret

“Midnight,” Ava whispered, her fingers curling into tight, white-knuckled fists. “The trust transfers to me the moment I turn eighteen. It becomes active at 12:01 AM.”

“Exactly,” Marcus said, pacing the length of the bunker. “Your mother’s will was ironclad. She knew your father was weak-willed and susceptible to flattery, so she structured the trust so that Richard could only act as temporary trustee while you were a minor. If you turn eighteen alive and competent, the entire legal conservatorship of the Whitmore estate—the shipping lines, the holding company, and Lily’s half—transfers solely to your signature.”

“And if I don't?”

“If you and Lily are dead, or if you are deemed legally negligent in the accidental death of your younger sister before your majority,” Marcus said with a chill in his voice, “the conservatorship falls permanently to Richard’s legal spouse. And Richard won’t survive another three months with the poison she’s slipping him.”

Ava’s gaze shifted to the oxygen mask misting over Lily’s small, pale face. The plot was breathtaking in its cruelty. Vivian didn't just want Lily dead; she had locked Ava in the pool room with her. If Lily drowned and Ava was found trapped, dripping wet, hysterical—or if they both drowned in the dark—it would be ruled a horrific domestic tragedy. An older sister who failed to save her sibling. Or a mutual accident in a malfunctioning private pool.

*Why tonight?* Because Richard was not in the house.

“Where is my father?” Ava snapped, turning to Marcus. “Vivian told me he was at a medical symposium in Philadelphia until tomorrow afternoon.”

“He isn't in Philadelphia,” Marcus said grimly. “I tracked the estate car earlier. Vivian had him admitted to the St. Jude Private Sanitarium forty miles north under an assumed name for ‘neurological observation.’ She had him drugged and transported at five o’clock this evening. He’s completely incapacitated. By the time he wakes up tomorrow, the papers will report that his two daughters perished in an unfortunate home mishap while the mother was out of the house attending a charity gala.”

“Except she isn't at a gala,” Ava spat. “She’s up there. Right now.”

Above them, a muffled crash vibrated through the floorboards. It was the sound of heavy boots moving quickly across the ground floor.

Marcus glanced up at the ceiling, his jaw set. He moved to the corner of the bunker and pulled up an old CRT security monitor connected to a closed-circuit loop that bypassed Vivian’s digital system. The flickering black-and-white feed displayed the ground floor.

Two men in dark tactical jackets were moving methodically through the grand gallery, carrying heavy pry bars and zip-ties. Behind them walked Vivian Whitmore.

On the screen, Vivian looked aristocratic and inhumanly calm. She was still wearing the floor-length black silk evening gown, her blonde hair swept up in an elegant chignon. In her gloved right hand, she held a sleek silver handgun; in her left, a master tablet displaying the home’s layout.

She stopped outside the pool room doors. The monitor had no audio, but Ava watched as Vivian keyed in an override code. The glass doors swung open.

Vivian stepped inside, her flashlight beam scanning the empty pool, the abandoned wet towel, and the open inspection grille behind the bench.

Ava saw the exact moment Vivian realized they were gone. The stepmother’s face twisted into an expression of raw, predatory rage. She turned to the two men, pointing violently toward the floor, shouting orders that set them running toward the cellar access doors.

“She found the grille,” Ava breathed, panic rising like bile in her throat. “Marcus, she knows we’re down here.”

“She knows someone helped you,” Marcus corrected. “She doesn't know about this room. Grace had the entrance masked behind the old wine racks. But those two men with her are private contractors—ex-mercenaries Vivian hired through her European shell company. They won’t leave a square foot of this basement unsearched.”

Lily stirred on the cot, letting out a small, wet whimper. “Ava… it hurts to breathe.”

Ava dropped to her knees beside her sister, gently removing the mask for a moment to wipe a bead of cold sweat from the child’s forehead. “I know, my brave girl. I know. Take slow breaths. Ava is right here.”

She looked at Marcus, her mind racing through every square inch of the estate. The mansion was a gilded cage set on twenty acres of woodland enclosed by ten-foot stone walls and razor-wire fencing.

“We can’t stay down here,” Ava said, her voice dropping into a crystalline calm she didn’t know she possessed. “If they trap us in this bunker, they don't even have to shoot us. They can shut off the ventilation intake from the cellar.”

“Then we fight our way out,” Marcus said, reaching into the bottom of a steel cabinet and pulling out an old 12-gauge hunting shotgun that had belonged to Ava’s grandfather, along with a box of heavy birdshot. “I’ll draw them toward the old carriage house. You take Lily through the eastern drainage culvert out to the county road.”

“No,” Ava said, staring at the shotgun, then at the monitor showing Vivian descending the main cellar stairs. “You won’t make it fifty yards against two armed professionals, Marcus. And even if Lily and I reach the road, she’ll die of pulmonary edema before we find a car in this storm.”

Ava looked back at the screen. Vivian was walking slowly now, her black silk gown sweeping against the dusty concrete floor of the upper wine cellar, her pistol held at the low-ready. She was confident. She believed she held all the cards.