What Defines A True Demon In Fantasy Novels And Their Powers?

The day Ruben Luisetti (Overlord Vampire of New York City and heir apparent to the Vampire King throne) first saw the feisty, golden haired beauty with the large luminous emerald green eyes, he had a ‘feeling’ He was shocked, he hadn't had one of those for many years and this one was strong attraction. He became intrigued, when during his investigations into some underworld murders, he kept bumping into her. This 'feeling' should have worn off, it didn't. In fact it just got even stronger, as a deep desire to possess this creature crept up on him. When he saw that she was clearly being enslaved and controlled, he felt obliged to save her and free her from her bonds. And able to be with him! But what is she? He thought she was perhaps Fae…boy, was he wrong and shocked to discover she was a Demon! . Katarina is a soldier demon, owned by Demon Lord Basille. Lent out to the human Scott McGowen as part of a blood pact contract to make him more powerful and rich while at the same time collect the souls of two hundred mortals for her Master to bolster his ranks in the Demon Realm. Until Ruben Luisetti steps into her life and shows her that what she thinks is her 'normal' in life, doesn't have to be… Well used to being merely a tool Katarina finds herself strangely entranced by the delectably handsome and powerful Vampire Lord and finds herself enthralled by Ruben's dominant, possessive yet gentle and caring nature for her, showing her a new way of being treated by someone…being treated with respect, care and…. Love?? . Can Ruben free his beloved from the Demon Contract? Can he free his beloved from Demon Lord Basille? To become entwined by Fate?

Being the only child to the Queen of Castle Grey, lost within the confines of mount Trenon, Kilvic is made to learn a number of things best suited to the heir to the Elzcrid bloodline at the hands of tutors handpicked by his mother. However, his fifteenth birthday sends him beyond the reaches of his mother’s domain. She has tasked him with the duty of learning more. Understanding greater things than she can teach him, greater things with which to cope with the curse upon his bloodline as she had been taught by her father and mother. Finding himself in a new kingdom, in an academy designed for only the most elite of mages, Kilvic is tasked to survive the new things he will come to learn, while struggling with the chaos of human association, as he comes to understand that while he may know a great deal about the world from the castle archives, it is a different thing to experience them. The association between people isn’t as easily deciphered as the books made them seem. As he struggles with the task of becoming a mage and a student along with surviving new friendships, failure threatens him at every turn and people prove pettier than the books would have him believe. Yet, despite all these, somewhere hidden in the shadows of the kingdom, a creature stirs, taking from the academy the one thing it values most. Kilvic must survive the trials of the academy, keep his friends, best his first enemy, and ensure that what stirs must not cause more damage than the kingdom can bear, lest the supremacy of Castle Grey be called into question in realms beyond that which most know. And all in time to attend the Winter Hall Fest.

Lately, buying succubi and incubi online had become all the rage. I could not afford one, so I picked one up from the side of the road instead. It turned out the quality of this incubus left a lot to be desired. Not only did he have a terrible temper, but he showed absolutely no interest in me. He would rather starve than "feed". Left with no other options, I snapped a photo of his incubus mark and sent it to the shop owner, asking how to handle this particular model. The shop owner completely lost it. "Oh my god, please tell me you're joking! That's not an incubus! That's a demon! The most dangerous kind!"

Esteria, the queen of the northern human kingdom, was finally getting married to the vampire prince of her dreams. What began as a treaty between their two kingdoms had blossomed into a courtship where she had truly fallen in love. Life was perfect until darkness cast its shadow over her happiness. Her beloved vampire betrayed her, delivering a fatal blow. With her last breath, she made a desperate deal with a Demon God. "You will have to become my mate to gain the power to exact your revenge," he whispered in her ear, sending a shock through her dying body. This Demon God was not only breathtakingly gorgeous and immensely powerful, but he was also dangerously seductive. Now, he was offering her a deal that promised both vengeance and peril. Esteria’s mind was a storm of grief and fury. Could she handle the Demon God’s insatiable desires and the deadly power that came with their pact? Or would she be consumed by the chaotic demands of this new, dark world? "I will kill both of them. I will draw their last breath with my sword and burn their bodies with my fury," she vowed, her determination as fierce as the hellfire she now wielded.

Azazel Dark is one of the most powerful demons in the Supernatural World. To an outsider, he has it all; he's , rich, and a loyal friend. The only thing that has ever been elusive in his life has been the love of a mate. Driven by his love for his newfound family, he agrees to help the Supernatural Council find Marael, a serial witch with a thirst for power. What he didn’t count on was finding his mate caught in the middle of a supernatural tug of war. Zoe’s life has never been easy. The daughter of a maid and the illegitimate daughter of the man of the house; she learned at a young age that the only thing she could count on was her oddly mesmerizing singing voice, but even that has failed her lately. While she's out partying with her friends, she sees him- Azazel. Unfortunately, her life and that of her friends take a dangerous turn. And the only one who can help her is the man who makes her feel things she never wanted to feel. Can Azazel save Zoe from the evil stalking her and her friends and prevent the accession of on earth? Or will their newfound love be shattered by unknown enemies hiding in the shadows?

He is a demon but also he is a fallen angel. After the war with seraph, he lost his love and became a demon with a broken heart, until he met a girl.