The heavy oak front doors of the Maddox estate swung open.

Ashlee stepped into the grand foyer. Her boots sank into the thick Persian rug. The air smelled of lemon polish and old money.

Johanna Maddox stood at the top of the sweeping staircase. She wore a silk robe. She held a crystal glass of sparkling water. She looked down at Ashlee.

Johanna's upper lip curled in disgust. She didn't try to hide it.

"Take her to the guest room at the end of the east wing," Johanna told the butler. Her voice was sharp and dismissive. "The one furthest from our rooms."

Ashlee didn't look up. She didn't acknowledge Johanna's presence. She grabbed her heavy duffel bag and walked straight up the stairs.

She passed Johanna on the landing.

A cold draft seemed to follow Ashlee. Johanna felt the sudden drop in temperature. She shivered and pulled her silk robe tighter around her shoulders.

Ashlee walked down the long, silent hallway. She found the room at the very end.

She pushed the door open. She stepped inside and kicked the door shut behind her. She turned the deadbolt. She flipped the latch. She hung the "Do Not Disturb" sign on the outside handle before closing it.

She dropped her bag onto the hardwood floor.

She unzipped the top pocket. She pulled out a small device. It looked like a tube of black lipstick.

She pressed a button on the bottom. A tiny green light blinked to life. It was a military-grade frequency scanner.

Ashlee walked slowly around the room. She swept the device over the bedside lamps. She moved it along the baseboards.

Near the large oil painting of a horse, the scanner emitted a low, rapid buzzing sound.

Ashlee smiled coldly.

She reached behind the heavy gold frame. Her fingers felt the smooth surface of the wall. She found a small bump. She dug her fingernail under it and pulled.

She held a micro-transmitter in her palm. It was a cheap, civilian-grade bug.

She walked to the nightstand and found a second one taped under the drawer.

She didn't crush them. She carried both bugs into the massive marble bathroom. She dropped them into the dry bathtub.

She reached over and turned the brass faucet. Water gushed out, hitting the marble with a loud, continuous roar. The white noise would drown out any conversation in the room.

Ashlee walked back into the bedroom. She reached into her bag and pulled out her encrypted phone.

She typed in a thirty-digit dynamic passcode. The screen unlocked. She pressed the single contact listed.

The call connected instantly.

"Mamba," Zane's voice came through the speaker. Zane's voice was distorted by the encryption, and the background was completely silent.

"Report," Ashlee said.

"I'm at an underground surgical clinic in South Boston," Zane said. "I paid the doctor ten grand to talk. An hour ago, a man came in. He bought a massive amount of local anesthetics, surgical glue, and hemostats. He paid in cash and left."

"Did the doctor get a look at him?"

"No. The guy wore a hood and a mask," Zane said. "But the doctor noticed the smell. He said the guy smelled strongly of sea salt and burnt cordite."

Ashlee's eyes sharpened. Her pulse ticked slightly faster against her throat.

The ocean. The gunshot. It was him.

"I'm sending you a photo," Zane said. "I dug it out of the clinic's biohazard bin."

Ashlee's phone buzzed. She opened the encrypted image.

It was a picture of a bloody piece of gauze. Sitting in the center of the dark red stain was a small, mangled piece of metal.

Ashlee zoomed in on the metal.

The edges of the fragment were peeled back in a very specific, jagged pattern. It looked like a blooming metal flower.

Ashlee's jaw tightened. Her thumb traced the image on the screen.

It was the signature expansion pattern of the custom hollow-point rounds she used in her Barrett. The bullet had hit him, shattered against his body armor or bone, and he had dug this piece out himself.

"He's in Boston," Ashlee said. A dark thrill rushed through her veins.

"Mamba, listen to me," Zane said. His voice was tense. "If he took a hit from that round and still managed to escape, cross the ocean, and walk into a clinic... he is not a normal target. He is extremely dangerous."

Ashlee walked to the window. She pulled back the heavy velvet curtains. She looked out at the glittering skyline of Boston.

"The harder they fight, the better the hunt," Ashlee whispered.

"I'm sending the gauze to a black-market lab to extract DNA," Zane said. "It will take a few hours."

"Do it," Ashlee said. She hung up the phone.

She walked back to her duffel bag. She reached deep into the side compartment. Her fingers wrapped around the cold polymer grip of her Glock 19.

She pulled the gun out. She pressed the magazine release. The empty mag slid into her palm. She pulled the slide back, checking the chamber.

Click. Clack.

The sharp, metallic sounds echoed in the quiet room.

Downstairs, a piano started playing. It was a classical piece, played with exaggerated emotion. Averi was showing off for her parents.

Ashlee picked up a box of 9mm ammunition. She pressed the brass cartridges into the magazine, one by one.

She stared at the floorboards. She imagined the pathetic family sitting in the living room below. They had no idea a monster was sleeping in their guest room.

The morning sun barely penetrated the thick windows of the Maddox estate's underground garage. The air was climate-controlled, smelling faintly of expensive car wax and rubber.

Ashlee walked out of the elevator. She wore a black leather motorcycle jacket over a plain white t-shirt. Her boots clicked sharply against the polished concrete floor.

The garage held six cars. Her eyes swept past the Range Rover and the Bentley.

She stopped in front of a sleek, matte-black Porsche 911 GT3 RS.

Ashlee walked over to the wooden key cabinet mounted on the wall. She opened the glass door. She reached for the key fob with the Porsche crest.

"Don't touch that!" a voice shrieked.

Ashlee paused. She slowly turned her head.

Averi stormed out of the elevator. She wore a tight pink Lululemon yoga outfit. Her face was flushed with anger. She ran over in her expensive running shoes and slammed her hand against the cabinet door, pinning it shut.

Averi lifted her chin. She looked at Ashlee with pure arrogance.

"That is my car," Averi declared. "Dad bought it for my birthday last month. You are not allowed to touch it."

Ashlee looked at Averi. She looked at the hand pressing against the glass. Her expression did not change. She looked at Averi the way a person looks at a cockroach blocking the hallway.

"Move," Ashlee said. Her voice was quiet.

"No!" Averi snapped. "You think you can just come back here and take whatever you want? You're nothing but a-"

Ashlee's right hand shot out.

She didn't punch Averi. She simply grabbed Averi's wrist. Her fingers wrapped around the delicate bones. Ashlee's thumb found the exact location of the radial nerve.

Ashlee pressed down. Hard.

A violent shock of pain shot up Averi's arm. Her fingers instantly went numb. The muscles in her forearm spasmed uncontrollably.

Averi screamed. It was a sharp, genuine cry of agony. Her hand flew off the cabinet door.

Ashlee didn't let go immediately. She held the wrist for one more second, letting the pain sink deep into Averi's brain. Then, she tossed Averi's arm away like a piece of garbage.

Averi stumbled backward. Her legs hit the side of the Rolls-Royce. She slid down against the door, clutching her wrist against her chest. Tears streamed down her face.

Ashlee reached into the cabinet. She took the Porsche key.

She pressed the unlock button. The Porsche's headlights flashed. The engine roared to life with a deep, guttural growl that shook the garage.

Ashlee opened the driver's side door. She looked back at Averi, who was sobbing on the floor.

"It's my car now," Ashlee said.

She slid into the low bucket seat. She pulled the door shut. She shifted into gear and slammed her foot on the gas pedal. The tires screeched against the concrete. The Porsche shot up the ramp and disappeared into the morning light.

Averi sat on the floor, her whole body shaking with rage. She looked at her wrist. It was already turning red. She scrambled to her feet and ran for the elevator.

On the second floor, Finley sat in his dark mahogany study.

He stared at his computer monitor. The stock charts for Maddox Corp were a sea of red lines pointing straight down. He rubbed his temples. A headache pounded behind his eyes.

The study door flew open.

Averi ran in, crying hysterically. She held her wrist up.

"Dad! Look what she did to me!" Averi sobbed. "I just told her not to take my car, and she attacked me! She grabbed me and twisted my arm! She's a psycho!"

Finley looked up. He didn't rush over to comfort her. He looked exhausted.

He stood up and walked over to his liquor cabinet. He poured a heavy measure of scotch into a glass.

"Stop crying, Averi," Finley said sharply. "This isn't about a damn car."

Averi sniffled, looking confused. She lowered her arm.

Finley walked back to his desk. He opened the top drawer and pulled out a thick stack of legal documents. The top page read: Trust Fund Transfer and Management Agreement.

"Your grandfather left Ashlee a trust fund worth three hundred million dollars," Finley said. He took a sip of the burning scotch. "It becomes fully accessible to her on her eighteenth birthday. Which is next week."

Averi's eyes widened. The tears stopped completely. Pure greed flashed in her eyes.

"If Maddox Corp doesn't get a massive cash injection in the next three months, we are going bankrupt," Finley stated coldly. "We will lose this house. We will lose everything."

"So make her give it to us," Averi said.

"She won't just hand it over," Finley said. He tapped his finger against the documents. "But, if we can prove to a judge that Ashlee is mentally unstable... that her time in Eastern Europe left her with severe psychological trauma and violent tendencies... I can petition the court to strip her of her financial rights. I will become the sole executor of the trust."

Averi stared at the papers. A slow, malicious smile spread across her face. She looked down at her red wrist.

"Violent tendencies," Averi repeated softly.

"Exactly," Finley said. He looked at his adopted daughter. "We are hosting a welcome home dinner for her tonight. I need you to push her buttons, Averi. I need you to make her lose control in front of the staff. But do it cleanly. Don't leave any marks on yourself that look staged."

Averi nodded eagerly. "I know exactly what to do."

Miles away, Ashlee drove the Porsche down the Boston highway. The engine screamed as she pushed the car past ninety miles an hour. She gripped the steering wheel, her mind focused entirely on the ghost she was hunting.

The Porsche's tires locked up. The car skidded to a halt on the cracked asphalt of an abandoned shipping yard in South Boston.

The smell of old motor oil and rotting seaweed filled the air.

Ashlee stepped out of the car. The wind whipped her hair across her face. She kept her right hand close to the pocket of her leather jacket, her fingers resting near the grip of her Glock.

She walked through the maze of rusted shipping containers. She stopped in front of a faded red one.

She raised her fist and knocked on the corrugated metal. Two fast knocks, a pause, then one heavy strike.

A heavy deadbolt clacked loudly from the inside. The metal door swung open.

Zane Carrick stood in the doorway. He wore a dark hoodie. He stepped back to let her in.

The inside of the container was a stark contrast to the outside. It was a state-of-the-art mobile command center. Server racks hummed loudly against the walls. Four large monitors glowed with lines of code.

Ashlee walked in. She pulled up a metal folding chair and sat down.

"Give me the DNA results," Ashlee demanded.

Zane picked up an encrypted tablet. He handed it to her. The screen displayed a complex double-helix graphic.

"I ran the blood sample from the clinic through the Grey Iron Delta global mercenary database," Zane said. His face was grim. "Zero matches."

Ashlee frowned. She swiped her finger across the screen. She accessed the Interpol red notice database and the FBI's biometric servers.

The data scrolled furiously. Ten seconds later, a large red box appeared on the screen: NO MATCH.

Ashlee stared at the red letters. Her jaw tightened.

She stood up. She walked over to a white dry-erase board mounted on the wall. She grabbed a black marker and drew a large question mark in the center.

"He breached Area 21," Ashlee said, her voice cold and analytical. "He bypassed our thermal grids. He took a hit from a .50 caliber hollow-point and still managed to cross the ocean. Someone with that level of skill does not exist in a vacuum. He should be in the databases."

"Unless," Zane said slowly, "his identity was completely scrubbed by a state-level intelligence apparatus. A total digital wipe."

Ashlee turned around. "A Ghost Agent."

Zane nodded. "If he's a Ghost, we won't find him by looking for his name or his face. He doesn't exist."

Ashlee felt a rush of adrenaline hit her bloodstream. A tight, dangerous smile touched the corners of her mouth. She loved hunting ghosts.

"Change the parameters," Ashlee ordered. She tossed the marker onto the desk. "Stop looking for the man. Look for the cage."

Zane sat down at his keyboard. "What do you mean?"

"He's severely injured. He needs a secure location to recover. He won't use a hotel. He'll use a safe house," Ashlee said. "Hack the Department of Defense's external property management systems. Look for shell company real estate in the Boston area."

Zane's fingers flew across the keyboard. Lines of code reflected in his glasses.

A map of Boston appeared on the main monitor. Dozens of red dots popped up across the city.

"I have forty-two properties flagged as potential government safe houses," Zane said.

Ashlee walked up to the monitor. She analyzed the map.

"He took a massive hit to the back," Ashlee said. "His mobility is compromised. Eliminate any property that requires climbing more than one flight of stairs."

Zane typed. Fifteen dots vanished.

"He needs to move unseen. Eliminate any property without an attached, enclosed garage," Ashlee commanded.

Zane typed again. Twelve more dots disappeared.

"He bought surgical supplies, but if the wound gets infected, he needs emergency trauma care fast. Eliminate any property further than a ten-minute drive from a major hospital."

Zane hit the enter key. The map zoomed in.

Only three red dots remained.

Ashlee pulled out her phone. She snapped a picture of the three addresses.

"He is in one of these three houses," Ashlee said. Her voice was absolute.

Zane looked up at her. He looked worried. "Mamba, if he is a DIA Ghost Agent, hitting his safe house on US soil is an act of war. You will trigger a diplomatic nightmare."

Ashlee looked down at Zane. Her eyes were completely dead.

"In my world, Zane, there is no diplomacy. There is only alive, and there is dead."

Her phone vibrated in her pocket.

She pulled it out. It was a text message from Averi.

Dad wants you home by 7 PM. We are having a special welcome home dinner for you! Can't wait to celebrate as a family!

Ashlee stared at the pink heart emoji. Her stomach churned with disgust. She knew exactly what this was. It was a trap.

She typed two letters: OK.

She put the phone back in her pocket.

"I have to go," Ashlee said. "I need to clean up some trash in my backyard before I go hunting. Is the secondary location ready?"

"Yes," Zane said, pulling up another encrypted file. "Your cover dorm at Boston Federal University is fully prepped and secure. We bypassed the standard housing lottery. No cameras in the blind spots, and the reinforced locks are installed."

Ashlee nodded. She walked out of the container. The heavy metal door slammed shut behind her. She got back into the Porsche. The engine roared, drowning out the sound of the ocean waves. She drove back toward the Maddox estate.