Aaron Melisandré, an autistic, African American transgender man in his thirties, nearly lost everything he held dear years ago. The only thing keeping him sane and alive is his trans nephew, Mico. Little does Aaron know, the tragedy that ripped his brother away is part of something far bigger than he could ever imagine. There is a very real multiverse, and not only that but Aaron along with being human, is part of an ancient multiversal species known as the Katians. Aaron must embrace and wield his true power, face trauma new and old, and be ready to do what he must in order to save the Katians and infinite other lives from Circuit-Breaker and the fabled Mortal Engine, a machine that is said to grant one the power of a god using mortal souls.