The note lay on Elena's desk long after everyone else had left.
The next heart belongs to someone you love.
She had read those words so many times they no longer looked real.
Outside, rain battered the windows of the Major Crimes Division. Thunder rolled across Blackridge like distant gunfire.
Adrien walked into the office carrying two cups of coffee.
"You've been staring at that note for twenty minutes."
Elena accepted the cup without looking up.
"If the killer knows about my sister, we're already behind."
"He wants you to panic."
"What if I'm already too late?"
Adrien remained silent.
His silence irritated her.
"Say something."
He pulled a chair beside her.
"The first victim was chosen carefully. The second was meant to confuse us. Daniel Mercer was different."
"How?"
"He still had his heart."
Elena looked at him.
"The killer isn't changing his method."
"Then what is he doing?"
Adrien opened his laptop.
"I searched every victim's financial records."
"And?"
"They all donated to the same charity."
"So?"
"The charity doesn't exist anymore."
Elena leaned closer.
"What happened?"
"It burned down eight years ago."
She frowned.
"An accident?"
Adrien met her eyes.
"That's what the newspapers said."
"You don't believe it."
"I don't believe in coincidences."
Before Elena could respond, Captain Holloway burst into the office.
"You need to see this."
Minutes later they stood inside the evidence room.
A small package had arrived without a return address.
Inside was an old cassette tape.
Nothing else.
The technician inserted it into a player.
Static filled the room.
Then a woman's frightened voice emerged.
"If anyone finds this... please don't trust—"
The recording suddenly stopped.
Another voice replaced it.
Calm.
Deep.
Almost gentle.
"Hearts don't break because of love."
A pause.
"They break because of truth."
The tape ended.
No one spoke.
Elena felt a chill crawl up her spine.
She had heard that voice before.
Not in person.
In a dream.
---
At midnight Elena drove to her sister Lily's apartment.
Every light was off.
Her heartbeat quickened.
She knocked.
No answer.
She knocked again.
Still nothing.
"Lily!"
She forced the door open.
The apartment was empty.
Furniture untouched.
Dinner still sat on the kitchen table.
A television played quietly in the living room.
"Lily?"
Her phone rang.
Unknown number.
She answered immediately.
"Who is this?"
Soft breathing.
Nothing more.
"Where's my sister?"
A man laughed quietly.
"You finally sound afraid."
The call disconnected.
Elena searched every room.
No sign of Lily.
Then she noticed something on the bedroom mirror.
Written in red lipstick.
Too slow.
Her knees weakened.
For the first time in her career...
She felt helpless.
Adrien arrived minutes later.
He studied the apartment carefully.
"No struggle."
"No broken locks."
"She opened the door herself."
Elena's eyes filled with anger.
"He took her."
Adrien didn't answer.
Instead, he walked toward the bookshelf.
One book was sticking out farther than the others.
He pulled it.
A folded photograph fell onto the floor.
Elena picked it up.
It showed five smiling people standing in front of a large stone mansion.
She immediately recognized Daniel Mercer.
Emma Collins stood beside him.
The remaining faces were unfamiliar.
Until she saw the little girl in the front row.
She froze.
It was Lily.
But the photograph had been taken almost fifteen years ago.
"What is this?" Elena whispered.
Adrien turned the picture over.
A sentence had been written in black ink.
Every story begins with forgotten children.
Before either of them could speak, lightning flashed outside.
For a brief second, the apartment filled with white light.
A shadow stood beyond the window.
Watching them from the fire escape.
Elena rushed outside.
The figure was already running.
She chased him through rain-soaked streets and narrow alleys, refusing to slow down.
The man disappeared into an abandoned subway tunnel.
She followed.
Darkness swallowed everything.
The beam from her flashlight danced across cracked walls covered in faded graffiti.
Then...
Footsteps.
Not ahead of her.
Behind her.
She spun around.
No one.
Her breathing echoed through the tunnel.
Another sound.
A single clap.
Slow.
Mocking.
Then the same calm voice drifted through the darkness.
"You've spent your life solving other people's tragedies, Detective."
A pause.
"But you've never asked why yours began."
The tunnel fell silent.
Elena raised her weapon.
"Show yourself!"
Only laughter answered.
Cold.
Patient.
Certain.
By the time backup arrived, the tunnel was empty.
The killer had vanished once again.
But this time, he hadn't just left a clue.
He had declared war.