Autistic scientist Yasira Shien has developed a radical new energy drive that could change the future of humanity. But when she activates it, reality warps, destroying the space station and everyone aboard. The AI Gods who rule the galaxy declare her work heretical, and Yasira is abducted by their agents. Instead of simply executing her, they offer mercy – if she’ll help them hunt down a bigger target: her own mysterious, vanished mentor. With her homeworld’s fate in the balance, Yasira must choose who to trust: the gods and their ruthless post-human angels, or the rebel scientist whose unorthodox mathematics could turn her world inside out.

The laws of physics acting on the planet of Jai have been forever upended; its surface completed altered, and its inhabitants permanently changed. The artificially intelligent Gods that ruled the galaxy, fearing heresy and chaos, have become the planet’s jailers. Tiv Hunt once trusted these Gods absolutely, but now her world has changed and her allegiance has shifted. Now Tiv spends her days helping the last remaining survivors of Jai. Everyone is fighting for their freedom against unthinkable odds, and they call out for drastic action from their saviour, Yasira. But she has become deeply ill, debilitated by her Outside exposure, and she struggles to keep breathing let alone lead a revolution. Hunted by the Gods, and Akavi, the disgraced angel, Yasira and Tiv them must delve further than ever before into the maddening mysteries of their fractured planet in order to save – or perhaps destroy – their fading world.

Final instalment from Philip K Dick Award-nominated series from Ada Hoffmann Time is running out for the planet Jai. The artificially intelligent Gods who rule the galaxy have withdrawn their protection from the chaos-ravaged world, just as their most ancient enemy closes in. For Yasira Shien, who has devoted herself to the fragile planet's nascent rebellion, it's time to do or die – and the odds are overwhelming. Enter Dr. Evianna Talirr. Talirr, the visionary who decimated the planet and began its rebellion, is not a woman to be trusted. But she's returned with an unsettling prophecy: the only way to save Jai is for Yasira to die. Yasira knows it can't be that simple. But as she frantically searches for other options, what she finds will upend everything she knew about the Gods, the galaxy she lives in, and herself.