False Horizon

One flight. An invisible attack. And a truth no instrument can confirm. When a volcano erupts on the Kamchatka Peninsula, volcanologist Irina Sabelnikova desperately tries to warn international aviation. But her message never gets through. Satellite connections fail, time signals begin to shift, and a deadly ash corridor remains absent from every official flight map. At the same time, Flight AE 402 departs Vienna for Tokyo with more than two hundred people on board.
Among them is engineer Mira Halden, a woman carrying evidence of a secret that was never meant to become public: HORIZON, a military system designed not merely to block satellite navigation, but to replace it with convincing false positions and manipulated time signals. It creates a digital reality so precise that neither computers nor their operators have any reason to doubt it. When the cockpit instruments begin producing data that is flawless, plausible?and dangerously wrong?veteran captain Erhard Vogl and First Officer Jamila Osei face an impossible decision.
Can they still trust the aircraft's advanced systems, or must they guide a fully loaded passenger jet across an empty northern sky using a paper chart, a mechanical watch, and human judgment? On the ground, young network analyst Tobias Reiter discovers a pattern hidden among technical warnings that everyone else has dismissed. In the air, AE 402 is drawn deeper into an invisible trap. With no reliable position, failing communications, and a massive volcanic ash cloud ahead, the crew is forced into a race against time, technology, and those determined to erase every trace of what happened.
False Horizon is a gripping disaster mystery thriller about blind faith in technology, responsibility buried beneath bureaucracy, and one terrifying question: How do you know where you really are?