SOME BATTLES NEVER END.
Born a Pureblood Demonio through his mother's secret experiments, Valentin "Val" Hart's story begins as a love story — until the truth beneath it can no longer stay hidden.
A dark sci-fi/fantasy trilogy — novel with anime/manga adaptation potential.
Valentin "Val" Hart is a teenager born a Pureblood Demonio — a human-Leviatan hybrid — through secret in-utero experimentation carried out by his own biological mother. The story opens deliberately disguised as a YA romance, told from love interest Marina Vasquez's point of view, concealing its true dark sci-fi nature for several chapters before the reveal.
Set on a post-apocalyptic 22nd-century Earth, power is split between the corrupt Luminous Covenant, the scientific Aegis Corporation, and the holy-warrior Inquisitors — whose Levi Core-powered suits slowly corrupt them into the very demons they're sworn to fight.
A love story hiding a war.
A post-apocalyptic 22nd-century Earth, fractured across four key locations:
Every faction believes it alone can save what's left of humanity.
Three books. One war against the self.
Get early chapters, character reveals, and behind-the-scenes worldbuilding as A Demon Within takes shape — plus everything else coming out of the Siblings Rivalry universe.
