The Arondight Codex Series by Nicole R. Taylor

With demons ravaging London and humanity in danger, it’s up to sassy and reluctant heroine Scarlett Ravenwood to protect the world from falling into the clutches of evil. London bartender, Scarlett Ravenwood, has never fit in. She’s a nobody with zero future, and the world thrives on reminding her. But when she's attacked by a demon, and becomes entangled with the mysterious man who saves her, Scarlett learns she’s not quite human... moreWith demons ravaging London and humanity in danger, it’s up to sassy and reluctant heroine Scarlett Ravenwood to protect the world from falling into the clutches of evil. London bartender, Scarlett Ravenwood, has never fit in. She’s a nobody with zero future, and the world thrives on reminding her. But when she's attacked by a demon, and becomes entangled with the mysterious man who saves her, Scarlett learns she’s not quite human. She’s a Natural — a demon hunting mage with powers unlike anything in the supernatural world — and her destiny is not her own. Thrust into a hidden world on the brink of an apocalypse, Scarlett must leave behind everything she’s ever known to protect humanity...or risk losing her soul forever. 
Dark Descent is the first novel in The Arondight Codex, a new Urban Fantasy series full of action, adventure, and romance, woven with the threads of lost Arthurian legend. Oh, and demons. Lots of demons. less

An ancient war with demons. A lost sword with the power to end it all. And a woman with purple hair is the world’s only hope. Scarlett Ravenwood’s life changed the day she found out she was a Natural — a demon hunting mage — but what makes her different, also makes her a target. She’s touched by Arondight, the legendary sword destined to end the war between Light and Dark, and that makes her valuable... to both sides... moreAn ancient war with demons. A lost sword with the power to end it all. And a woman with purple hair is the world’s only hope. Scarlett Ravenwood’s life changed the day she found out she was a Natural — a demon hunting mage — but what makes her different, also makes her a target. She’s touched by Arondight, the legendary sword destined to end the war between Light and Dark, and that makes her valuable... to both sides. But when she finds out her best friend Jackson is in danger, a conspiracy with the power to tip the balance to the Dark is revealed and the only person she can trust is Wilder, her Natural mentor. Together, they do the unthinkable — break out a hybrid demon from prison and betray their own kind. On the run from the Light and the Dark, their only hope is hunting down the greater demon who murdered Scarlett’s parents, conspired to turn Jackson into a monster, and killing him... before he can turn humanity into an army of mutated super demons. Dark Illusion is the second novel in The Arondight Codex, an Urban Fantasy series full of action, adventure, and romance, woven with the threads of lost Arthurian legend. Betrayed by their own kind and on the run, can Scarlett and Wilder take down a greater demon? Time is running out… less

A knight in shining armour. A secret buried in time. Arondight has never been closer to being found... Scarlett Ravenwood is at a crossroads. After suffering their biggest betrayal yet, the Naturals are on high alert. There’s no telling who is on what side, or if the Light has been infected with the Dark. The end is nigh and Arondight is still out of reach. Their only hope is a worn out coin given to Scarlett by the last of the Druids, along with a riddle no one can seem to solve... moreA knight in shining armour. A secret buried in time. Arondight has never been closer to being found... Scarlett Ravenwood is at a crossroads. After suffering their biggest betrayal yet, the Naturals are on high alert. There’s no telling who is on what side, or if the Light has been infected with the Dark. The end is nigh and Arondight is still out of reach. Their only hope is a worn out coin given to Scarlett by the last of the Druids, along with a riddle no one can seem to solve. The key, the shard, and the stones. When Scarlett takes matters into her own hands and touches the Natural’s most sacred relic, the Codex, she’s shown a vision of Arondight’s resting place and does what she does best—take matters into her own hands. Her recklessness could lead the Naturals to their salvation or their doom. There’s no way of telling until she puts the key into the lock and finds out what’s on the other side… Dark Genesis is the fourth novel in The Arondight Codex, an Urban Fantasy series full of adventure, mystery, and romance, woven with the spirit of heroic Arthurian legend. less