It's been seventeen years since the internet crashed and left the world broken...

On the Bellwether, a huge floating college safe from the politics and war of the mainland, Auli is part of a research team studying the Oracle - a strange, uncanny girl who channels dangerous ghosts. The scientists notate everything she says, using her to piece together maps, weather forecasts, and anything else that might make the region’s hazardous waters a little safer for shipping cartels and local fishermen alike.

Auli is horrified when her beloved mentor, Boudain, reveals his scheme to create more human Oracles, seeking to leverage the power of this unique girl into security for the Bellwether and perhaps even a return to a new, warped digital age. The very next day, she finds him dead.

Reluctantly promoted to lead her team, Auli begins an investigation into Boudain's death. Her scrutiny reveals the corrupt heart of the institute she has dedicated herself to, and as the ghosts and even the very seas around them start to mutate, she is forced to wrestle with a life-changing decision: save the Oracle or save the Bellwether - and all the lives that depend on it.