Echo Encounter (en Inglés) - Manny Contreras

In a world where the unseen holds unimaginable power, one man is humanity's only defense.

Ben Underhill is no ordinary operative. Blind since childhood, he has developed an extraordinary ability-echolocation so precise it allows him to "see" what others cannot. Trained by a covert government agency, Ben hunts entities that exist beyond human perception-beings responsible for tragedies no one else can explain. 

But when a mission in Moscow uncovers a global conspiracy involving cyber warfare and geopolitical sabotage, Ben is forced to question everything he's been taught. Are the true threats the invisible creatures he's been chasing-or the very human forces operating in plain sight? 

As mysterious aerial encounters shake military forces and cutting-edge technology begins to attract dangerous attention, Ben finds himself at the center of a conflict that spans science, espionage, and the unknown. 

Echo Encounter is a gripping sci-fi thriller blending high-stakes action, advanced technology, and extraterrestrial mystery-perfect for readers who crave suspense, intelligence, and a hero unlike any other.