Lumin is a forest world, with trees who’s roots reach all the way to the planet’s core. The lives of the people of Lumin are closely entwined with those trees. Maybe too entwined; after using the energy that flows through the forests to power every aspect of society, the Core is heating up and the trees themselves are dying. There’s only one way to reverse the damage: shut down the entire Network, cutting off all advanced technology that feeds off the trees and throwing the planet into a new dark age. The Core will stay sealed for as long as it takes the planet to heal.
More than six hundred years later, a young woman named Mia stumbles across a treasure in the Archives of the Order of Vis Firmitas. The treasure is a book, hidden away for centuries. The history of an ancient battle and the key to the lost technology of the planet may be contained inside the mysterious artifact that slowly comes to life in Mia’s hands: the Compendium.