Protect the dead.Grave Cold introduces a world overrun by mutations where the dead remain in their bodies till a raven releases them. Each raven is a long-lived individual steeped in the culture of the time and place they originated. However, the District of Portland is using the dead as an energy source. Nylewulf, an Anglo-Saxon man who has spent centuries hiding from humanity, and Cait, a beautician who happens to be a necromancer, team up to protect the dead. In Death Rights, Nyle and Cait have reached Angel's Rest when a raven even older than Nyle appears. Lucius, known as the Kingmaker, is part of the council that regulates the elusive ravens. While DP aims to destroy every raven sanctuary in the district, Lucius unfurls his own plot. Once again, Nyle and Cait strive to stay alive and protect the dead. But survival alone doesn't satisfy either of them. Justice requires that they face the government head on. A thousand years have passed. In Memento Mori Station, Nyle, the only raven still on Earth, dutifully continues to tend the dead. His mind-reading assistant, Em Collins, helps him return to the present when memories pull him into echoes of the past. However, a mysterious invitation from a distant space station breaks Nyle's routine. He'd had no intention of leaving Earth, but the message ends with a coded SOS from his old friend Ethan West. Nyle doesn't hesitate.  As his spaceship approaches the station, Nyle has plenty of time to consider the deep cold that signals a massive quantity of untended dead. Records show that multiple ravens had traveled to the station, yet no raven has ever left. Nyle refuses to abandon either Ethan or the dead, but the vast distances of space mean that whatever mysteries or obstacles surface, Nyle will have to face them with only the aid of his small team.  Dead Energy is a Grave Chronicles omnibus containing Grave Cold, Death Rights, and Memento Mori Station.