THE HEIR’S SECRET

The second explosion was closer, rattling the bulletproof windows of the main office and triggering the estate’s high-pitched emergency sirens. Red strobe lights began to pulse along the vaulted hallways, casting long, frantic shadows against the dark wood panels.

“They’ve breached the outer courtyard,” Prescott announced, his eyes glued to the security console as he slapped a fresh magazine into his rifle. “They’re bypassing the guardhouse entirely. They know the layout of the property.”

That detail hit me harder than the explosions.

My estate was designed like a fortress. The blueprints were classified, kept in a secure vault that only I and my head of security had access to. For a hit squad to navigate the grounds with such calculated efficiency meant only one thing:

There was a traitor inside my inner circle.

“Prescott,” I said, my voice dangerously calm as I grabbed a tactical vest and strapped it over my tailored shirt. “Lock down the internal panic room in the sub-level. Get the medical team down there immediately.”

“And the kids?” Prescott asked, his thumb flicking the safety off his weapon.

“I’ll carry them myself,” I replied.

I turned to Elena, who stood frozen in the middle of the room, shivering violently as the sounds of gunfire echoed from the front gardens. My guards were returning fire, the sharp crack of automatic weapons cutting through the howling winter wind.

“You,” I grabbed her arm, pulling her toward the hidden armory entrance. “You’re coming with us. If you’re lying about the decryption keys, I promise you won’t survive the night. But if you’re telling the truth, you’re going to help me save my children.”

Elena didn’t pull away. She nodded, her chin trembling slightly but her eyes fierce. “I’m not lying, Mr. Mercer. But down in the sub-level, we won't just be safe from their guns. We’ll find what Genevieve left behind.”

“What are you talking about?”

“Your wife didn't just find out about the gene-splicing ring before she died,” Elena whispered as we stepped into the hidden corridor behind the office. “She stole their master drive. And she hid it somewhere in this house that only a Mercer could access.”

We slipped into the dark, climate-controlled corridor. Prescott took the rear guard, firing a controlled three-round burst backward as a heavy reinforced security door at the end of the hall began to spark under the relentless grinding of a plasma cutter.

Vance’s men were already inside the main residence.

We descended the spiral steel staircase leading down into the subterranean levels of the estate. The air grew colder, smelling of concrete, ozone, and old iron.

At the bottom of the stairs lay the entrance to my private sub-level armory and panic shelter—a massive, eight-ton vault door designed to withstand a direct missile strike.

Dr. Franklin Yates and two frantic pediatric nurses were already waiting by the reinforced inner doors, wheeling Jonah and Blythe’s mobile life-support units out of the private medical wing.

“Mr. Mercer!” Dr. Yates yelled over the wailing alarm, his face ghostly pale. “Their vitals are crashing! The adrenaline from the explosions—their systems can’t handle the shock!”

I rushed past them, dropping to my knees beside Blythe’s bed.

My little girl’s eyes were barely open. Her skin was translucent, glowing with a sickly, pale hue under the harsh emergency fluorescents.

“Daddy…?” she whispered, her voice so faint I had to press my ear against her lips to hear it.

“I’m here, baby. I’ve got you,” I choked out, a wave of blinding fury surging through my chest.

Jonah stirred on the adjacent bed, his small fingers weakly grasping at the air. “It hurts… everything hurts…”

I looked up at Elena, who stood by the control panel of the vault. Her hands hovered over the digital keypad, her eyes darting between the numbers and the silver necklace still clutched in her fist.

“The master drive,” I demanded, standing up and stepping between her and the enemy-battered door upstairs. “Where is it?”

Elena closed her eyes, pressed the tiny blue stone of Genevieve’s necklace against the vault’s bio-scanner, and typed a sequence of twelve numbers.