Master of Souls by Rena Barron

Arrah has paid many prices in her battle against the Demon King.

Now, she must decipher the legacy of her past and weave an uneasy alliance between her beloved Rudjek, the Demon King, and the remaining orishas, hoping to restore peace to all their worlds.

But as Arrah’s half-demon sister regains her strength and resumes her quest for destruction, peace may require the ultimate sacrifice.