Earth is dying, and humanity’s last hope is an ocean world in the goldilocks zone of the Sotiris Solar System. But Poseidus is a savage world, its depths filled with prehistoric terrors, and its surface an unceasing tempest. The fledgling colony of New Plymouth is still struggling to gain a foothold when something new arises from the bottom of the ocean; a message from a submarine that shouldn’t exist. “Don’t Trust the White Robe.” Now, Chief Navigator Terry Samsky must dodge monsters and military officials alike as she seeks out the source of the distress signal. But will she find a lost crew, and prove their savior? Or will she fall into a sadistic trap, set by something far older than the human race, and doom them all to the abyss?