The blade did not waver.
Sloane kept her right elbow locked at a perfect ninety-degree angle, her weight distributed evenly across the balls of her boots, her eyes tracing the jagged line where Caius’s neck met his shoulder. Her thumb was firm against the cross-guard of the folding knife. To a human observer, the weapon would have looked laughably inadequate against the mountain of muscle and silver-eyed malice standing over the split remnants of her kitchen table.
To Sloane, a three-inch piece of high-carbon steel driven into the subclavian artery at a forty-five-degree downward trajectory was still a lethal calculation.
"Step back," she said. Her voice wasn't loud, but it had the flat, dead-calm cadence of a flight controller dealing with a systemic engine failure.
Caius didn't move. The liquid silver in his eyes roiled, his massive chest expanding as he drew in the scent of her sweat, her skin, and the sharp, metallic tang of the open blade. A low, sub-audible growl vibrated through his ribs, a sound so dense it made the loose shards of window glass on the floorboards dance.
"You are threatening a Prime in his own territory, Miss Sterling," he rasped, the words catching on his elongated canines.
"I am establishing a perimeter on a property I legally lease," Sloane replied. She didn't blink. The wind howled through the ruined doorway, whipping her dark hair across her cheek, but her hazel eyes remained fixed on his. "You broke my door. You destroyed my furniture. And you have left a hundred-and-twenty-kilogram biological hazard bleeding onto my floor. You are currently operating at a massive logistical deficit, Mr. Vane."
Caius took a single, slow step forward. The air pressure shifted, the heavy, suffocating weight of his aura pushing against her skin like a physical wall.
Sloane didn't retreat. She tightened her grip on the knife, her knuckles turning white, her heart rate spiking to one hundred and ten beats per minute—not from panic, but from the raw, chemical adrenaline required to hold her ground against an apex predator.
"He would have torn your throat out before your digital alert ever cleared the Dublin server," Caius said, his voice dropping into a dangerous, dark register as he pointed a black-hooked finger down at Torin’s motionless body.
"Then we would both be dead, and your estate would be facing an international homicide investigation, an immediate freeze on your offshore assets by the financial division in Seattle, and a forensic audit of these coordinates," Sloane shot back, her words cutting through his dominance with the clean, sharp edge of a razor. "I don't need you to protect me from the variables, Caius. I need you to explain the equation."
The use of his first name—stripped of his title, delivered with the cold authority of an auditor—struck him like a physical blow.
The silver in his eyes flickered, the opaque sheets of frost receding just enough to reveal the icy, brilliant blue beneath. The black hooks of his fingers slowly relaxed, the muscle fibers along his shoulders settling back into their human dimensions with a dry, shifting sound. The oppressive weight in the room lifted by a fraction of a millibar.
He looked from her face down to the laptop screen, which was still dark, its internal hard drive fried by the atmospheric displacement of his arrival. Then his gaze drifted to her notebook, which lay untouched on the dry half of the split table, her clean, blocky handwriting fully visible under the gray light of the breaking dawn.
SURFACE AREA VARIANCE DETECTED: +14.2%
A slow, complex expression crossed Caius’s aristocratic features—a mixture of dark amusement and a terrifying, possessive pride that made the silver wire between their chests twist with a sudden, hot friction.
"You ran the metrics," he said. It wasn't a question.
"The 1842 survey doesn't align with the satellite grid," Sloane said, lowering the knife by exactly two inches but keeping her fingers tight on the hilt. "The road transit times are skewed. The upper ward has a fourteen percent spatial surplus that doesn't exist on any map in the civil registry. You’re hiding mass, Caius. You’re hiding land."
"I am not hiding it," Caius said smoothly, stepping over Torin’s legs as if the elder were nothing more than a fallen log. He stopped just on the other side of the broken table, the distance between them now less than three feet. The scent of wild honey and ozone was suffocatingly close. "The land has always been there. The human eye simply lacks the optical processing power to calculate the margins. Your software detected the anomaly because you don't trust what you see—you trust what you measure."
"Geometry doesn't bend for optics," she countered, her analytical mind straining against the sheer absurdity of his statement.
"It does when the lineage that cleared the valley has been bleeding into the soil for two thousand years," Caius whispered, leaning over the wreckage of the table. The blue of his eyes was entirely clear now, piercing and absolute. "The Ridge expands to accommodate the Pack, Sloane. The closer you get to the keep, the deeper the roots go. You wanted to map the boundaries of Blackwood? You've found them. They just don't fit into your digital boxes."
Sloane looked from his face to the notebook, her logical framework fracturing at the seams, yet her mind greedily consuming the new data point. It was impossible. It defied every law of physics she had studied at university.
And yet, there was a dead monster on her floor, a shattered door, and a man whose body heat was currently radiating across the ruined kitchen like a furnace.
"Then your template is unstable," she said, her voice dropping into a quiet, intense register that made Caius’s breath hitch. "An expanding perimeter means an un-trackable center. If the council knows I’ve found the deficit, they won't stop at sending one old wolf through the fissures."
Caius’s jaw tightened, the aristocratic lines of his face hardening into cold stone. "They won't send anyone else. I dismantled their legal framework in the hall last night. And as for Torin..." He looked down at the floor. "...he was a variable that needed to be permanently deleted from the ledger."
He reached out, his massive, scarred hand hovering an inch above her notebook. He didn't touch it—he waited, his eyes locked on hers, respecting the boundary she had drawn with the steel in her hand.
"The cottage is no longer a secure perimeter," Caius said, his voice dropping into a low, commanding rumble that left no room for negotiation. "The windows are gone. The threshold is breached. You are moving to the western tower, Miss Sterling. You can bring your tools, your software, and your charts. But you will do your calculations where I can monitor the variables."
Sloane looked at his hand, then at the open knife in her own. Her strength wasn't in her muscle; it was in her choice. She knew that entering Blackwood Castle meant stepping directly into the maw of the machine—but it also meant getting her hands on the primary source of the anomaly.
Slowly, deliberately, she folded the steel blade back into the handle with a clean, mechanical click.
"I'll need my external hard drives," she said.