- Author: Larissa Ione
- Publisher: Grand Central Publishing
- Year: 2008 - 2010
- Setting: Earth, Underworld General, Sheoul
- Number Of Books In Series: 5 Books, 2 Novellas
The Demonica series is a series of books by Larissa Ione about the brothers who run a hospital for demons in the underworld. Each book has a new hero and heroine.
Events in this series lead on to the beginning of the Lords Of Deliverance series, also by Ione.
- Pleasure Unbound - July 2008 (Protagonists: Eidolon and Tayla Mancuso)
- Desire Unchained - February 2009 (Protagonists: Shade and Runa Wagner)
- Passion Unleashed - March 2009 (Protagonists: Wraith and Serena Kelley)
- Ecstasy Unveiled - February 2010 (Protagonists: Lore Donelly and Idess)
- "Eternity Embraced" in The Mammoth Book of Vampire Romance 2 - September 2009 (Protagonists: Andrea Cole and Kaden Quinn)
- Sin Undone - August 2010 (Protagonists: Sinead Donnelly and Conall Dearghul)
- "Vampire Fight Club" in Supernatural - September 2011 (Protagonists: Vladlena Paskelkov and Nathan)