Maeve Jackson helped save the people of Palumbra, but there were consequences. Maeve is left with nightmares and a loss of purpose... Until a government patrol doesn't return from a scouting mission to the newly found city, The Hub. Maeve and her friends join the mission to discover what happened to the patrol, and what they find puts Palumbra back in the crosshairs of an old enemy and Maeve's group of friends once again at the forefront of a race to save Palumbra. But this time, it might cost Maeve everything. Can Maeve and her friends discover what killed the people of The Hub before it kills them?