Silent Frequency

He was built to be a weapon. She was the only one who heard his scream. Sophie Stone does not trust words; she trusts frequencies. Safe inside her family's isolated fortress in the mountains, she spends her nights decoding the sounds of the forest. But one night, the geometry of her silence is shattering. It starts with a heartbeat. Thump-thump. Fast. Too fast. 180 beats per minute. Mechanical. Dying. Out in the frozen woods lies Kian. Officially, he is Unit 7, a proprietary asset of A.C.E. Corp, a cybernetic soldier designed for war. In reality, he is a ghost on the run, his body burning up from a failed prototype serum, his mind fracturing under the weight of stolen memories. He came to the mountains to die in peace. He didn't expect to be found. When the mercenaries arrive with thermal drones and seismic hammers to reclaim their property, Sophie makes a choice. She steps out of the safety of her room and into the crossfire. To save him, she will have to hack the physics of sound itself. To save her, he will have to break his own programming. From the silent snows of Stone Creek to the neon-drenched acid rain of Neo-Veridia, a girl and a monster race against a kill-switch code ticking down in Kian's blood. But the most dangerous secret isn't the technology inside him—it's the connection growing between them. Silence is over. The hunt has begun.