About this book:

In the dystopian city of New Tanith, where the sun is a memory and the Directorate's iron fist controls every whisper, survival means disappearing. Cassia Lin, a mechanic haunted by her father's execution for "innovation crimes," lives by this rule, quietly salvaging and repairing forbidden technology. Her life of calculated anonymity shatters when an earthquake unearths a relic from the past: an outlawed radio. This device, pulsating with a faint, forbidden energy, is a direct link to a rumored resistance known as the Free Voices and a spark of hope in a world suffocated by silence.

Cassia's mechanic's intuition leads her to repair the radio, accidentally sending a signal that connects her to the Free Voices and pulls her into their dangerous mission. As she delves deeper into the secrets of the radio and her father's cryptic notes, she uncovers the existence of Project Echo, a revolutionary communication protocol, and the mythical Cipher Key, a device capable of shattering the Directorate’s absolute control over information. Her quest for truth becomes intertwined with a desperate rescue when she learns her father's colleague, Aris Thorne, a key figure in Project Echo, is alive and imprisoned, and the silent operative who recruited her, Ren, is a deep-cover spy working to free her.

Beneath the Iron Sky is a thrilling journey of rebellion, discovery, and shattered chains. Cassia's unique ability to understand and manipulate forgotten technology becomes the key to exposing the Directorate's lies and igniting an uprising. Facing betrayal, loss, and the terrifying reality of her father's fate, Cassia must risk everything to secure the Cipher Key and unleash Project Echo, not for power, but for the unbound freedom of a city yearning for the light of truth.