Demons Within Series by R. Sullins

The first time she knew real happiness was when she found out that the man who raised her wasn't her real father. She knew that there couldn't be monsters in the world that were any worse than the monster she had called 'daddy' for most of her life. Then she stumbled into the world of demons. The Demon King knew the second his fated mate had been brought into the world. After living years too numerous to count, it meant little to him other than to keep him from living as he had... moreThe first time she knew real happiness was when she found out that the man who raised her wasn't her real father. She knew that there couldn't be monsters in the world that were any worse than the monster she had called 'daddy' for most of her life. Then she stumbled into the world of demons. The Demon King knew the second his fated mate had been brought into the world. After living years too numerous to count, it meant little to him other than to keep him from living as he had. He now belonged to only one female - and he would have to wait years for her to mature enough to matter. How stupid and vain he had been to think that his fated wouldn't matter. The very moment she entered his club he knew he had been wrong to ignore fate. She was his. And he was going to destroy everyone that hurt her, even if he had to burn the Earth realm to the ground. less

The long awaited sequel to Lovely Darkness by USA Today Bestselling author R Sullins! Kallista had always known she was different. The shadows had always called to her. She craved to be held safe in their cool depths. To escape her parent's methods of attempting to rid her of her demons. Valen was destruction. Everything he touched crumbled. Everywhere he went, pain followed. He learned a millennia ago that being alone was the only way to keep the world safe... moreThe long awaited sequel to Lovely Darkness by USA Today Bestselling author R Sullins! Kallista had always known she was different. The shadows had always called to her. She craved to be held safe in their cool depths. To escape her parent's methods of attempting to rid her of her demons. Valen was destruction. Everything he touched crumbled. Everywhere he went, pain followed. He learned a millennia ago that being alone was the only way to keep the world safe. When the marks that had shown on Valen's wrist years ago suddenly changed, he realized that there was more to his world than he knew. A woman called to the deepest parts him. For the first time in his very long life, he was going to give in to his instincts. He would just have to protect her from the destruction that followed him. less

A mysterious note sent Sasha to the one place she vowed hundreds of years ago never to return to. She never expected to encounter her mate. The mate who had been held prisoner and tortured by one of the High Generals of The Underworld for thousands of years. The mate who was one of the four brothers that the entire demon race seems to have forgotten. The problem was that Varos didn't look at her like she was his fated mate... moreA mysterious note sent Sasha to the one place she vowed hundreds of years ago never to return to. She never expected to encounter her mate. The mate who had been held prisoner and tortured by one of the High Generals of The Underworld for thousands of years. The mate who was one of the four brothers that the entire demon race seems to have forgotten. The problem was that Varos didn't look at her like she was his fated mate. No, the only way she could describe the way he looked at her is with utter hatred and repulsion. She couldn't even blame him for feeling that way since it was her father, the High General, who sent her running all those years ago. If they managed to survive their escape through The Underworld, Sasha swore to herself that she would deliver Varos to his brothers and never bother him again. No matter how much she had grown to love him. less