0.451UNIDENTIFIED SIGNAL
A techno-Noir Cyber Thriller

CODECITIZEN

Haris Grigoriou

The boundary between human consciousness and the digital world is about to disappear.

AMAZON — 02 OCTOBER 2026

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01
01 / THE STORY

NIKOS THOUGHT HE WAS INVESTIGATING A CYBERCRIME.

He was wrong.

When a mysterious digital anomaly leads Nikos into a web of terrorism, artificial intelligence and neural technology, the investigation begins to reveal something far more dangerous: a system capable of blurring the boundary between human consciousness and the digital world.

Someone is willing to kill to keep its secrets hidden.

At the center of it all is Helios—an extraordinary system whose true purpose may change the meaning of what it means to be human.

But Nikos isn't only trying to uncover the truth.

He's trying to find his friend.

And the deeper he goes, the harder it becomes to tell where the real world ends... and the digital world begins.

THE SYSTEM IS WAITING.

THE QUESTION IS: WHO IS INSIDE IT?
02
02 / RESTRICTED ACCESS

THE WORLD IS MORE CONNECTED THAN IT LOOKS.

SYS-01

HELIOS

A system at the center of a mystery that reaches far beyond ordinary AI.

SYS-02

NEURAL LINK

Where the boundary between mind and machine begins to disappear.

SYS-03

MIDNIGHT SUN

A command whose meaning should never have been discovered.

SYS-04

0.451

An unidentified signal. A number that refuses to stay buried.

03
03 / LOCATIONS

THE INVESTIGATION HAS NO SINGLE ADDRESS.

Six locations. One expanding mystery. The chapter time-and-place information will be added here when finalized.

01 / EAST ASIA

TOKYO

02 / FRANCE

PARIS

03 / BELGIUM

BRUSSELS

04 / FRANCE

DIJON

05 / FRANCE

LYON

06 / GREECE

ANTIPAROS

COVER
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05 / RELEASE
02.10.2026
COMING TO AMAZON

CODE CITIZEN — Haris Grigoriou
A techno-Noir Cyber Thriller

AMAZON LINK — COMING SOON