Sea of Salt. Salt of the Earth, #2

The sea is no longer silent. The Arlo has completed its historic mission, delivering unimaginable riches to Salt Industries and saving Arthur Salt and his son Marshall from financial collapse. But wealth brings attention-and danger. Salt Industries stands at the center of a geopolitical storm. Hostile governments circle them like predators, the Manifest Destiny Cartel continues its relentless pursuit, and the powerful Yamaguchi yakuza clan has its own agenda.
As the bonds between Marshall, Blake, and Justin begin to break, Blake finds himself isolated. Naomium itself remains their greatest prize, and in the wrong hands it could devastate the planet. Beneath the icy crust in the Sea of Enceladus, something is stirring. But will it be Earth's worst nightmare, or its salvation?