Brandon Giles 
The Acoustic Assassinations [EPUB ebook] 

2242. The world is hushed. The Silence Act, born from the ashes of a noise-polluted past, governs every decibel in New Stillhaven.  But within this sterile city, a chilling new violence has emerged: acoustic assassinations. Victims fall silently, their organs ruptured by invisible sonic waves.  The only trace? A fleeting ripple in the air, a ghost of sound in a world defined by its absence.
Elias Vance, a sound engineer haunted by memories of a louder era, is thrust into this silent nightmare when his mentor becomes the latest victim.  His investigation leads him to the Echoes, a rebellious group clinging to the forbidden beauty of sound, and to the chillingly efficient Argus Corporation, the enforcers of silence.  Caught between a haunting past and a terrifying present, Elias must unravel a conspiracy that reaches the highest levels of power.
As Elias delves deeper, he finds an unexpected ally in Tiffany Thompson, a haptic communication specialist born into the silent age. Their connection blossoms in the shared silence, a delicate dance of gestures and shared breaths. Tiffany’s unique perspective challenges Elias, forcing him to confront his own trauma linked to the noise of the past.
But the Echoes are not all they seem. Their enigmatic leader, Nicole Valdez, harbors her own secrets, her motives as murky as the silent city itself.  Is she an ally or a manipulator? And what is her connection to Elias’s murdered mentor?
The hunt for the acoustic assassin becomes a race against time.  Elias uncovers blueprints for a sonic weapon of mass destruction, a tool that could shatter the fragile peace of the silent world and unleash a new kind of auditory apocalypse. He must expose the truth before the city is silenced forever.
From the sterile confines of Argus headquarters to the hidden havens of the Echoes, Elias navigates a world where every rustle, every vibration, is a potential threat.  He must master the silence, turning it into his weapon, his shield, his only hope in a city holding its breath.  In a world where silence is golden, some are willing to kill for it.