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Welcome to the SubtleDemon universe.

Here, you will find information and insights on my books and characters. Worlds will rise and fall; power will wax and wane. Alien races will be introduced—both good and bad—to challenge your imagination. You are encouraged to follow the adventures of vampires, werewolves, shapeshifters, wizards, warlocks, demons, Larentii and everything in between.

On Earth, this website is the only location where this information may be found. A better record is held within the Larentii Archives, but invitations to that hallowed institution are seldom issued to humans.


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Upcoming Releases

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Worth Your While
—the long-awaited sequel to Your Money's Worth.
Seattle Elementals Series, Book 2
Available Christmas 2018

I should be dead.

All the fire demons who were betrayed and sacrificed before me had certainly died. Will, the wizard who attempted to destroy me, said it was the only way to kill the enemy known as Black Myth.

Of all the fire demons led unknowingly to their deaths, how had I survived—and why?

—Cassie King-Worth

Recent Releases

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Blood Alliance
Blood Destiny Series, Book 12
Kindle (Preview) | Autographed Copy
Available elsewhere 1/23/2019


"There's a slight problem," Teeg San Gerxon announced as he appeared next to Rylend.

"What's that?" Vik asked. I already knew from reading it in Teeg's face. Irina's body had been found; I recognized her image in Teeg. He still didn't know her identity, but testing on her body revealed that she died of radiation poisoning, and that she was originally from Old Earth.

* * *

After his escape from Earth in the past, D'slay appears in the Reth Alliance—in the future.

Zaria can only follow D'slay's trail of crimes; something—or someone—prevents her from finding him.

Is D'slay the real villain, or is he only a distraction for other, more sinister plans?

When it becomes apparent that important hub worlds are in danger, Lissa, Reah, Zaria and many others must form a Blood Alliance to combat the coming chaos. Will their efforts prove effective, or has the plot against them been laid too well?