The Light of Blood: A Vampire Romantasy (The Bloodlight Lumière Series) by Jade Christy

What happens when the woman who created a serum to give the sun to vampires becomes the target of those who want only darkness? I’m Cassandra Burke. Scientist. Scholar. Human outsider invited to the ancient Vampire city of Nivara to decipher important ancient manuscripts. Lumière—my creation—lets vampires walk in the sun. But not everyone thinks that’s a good thing. Some call it freedom. Others call it a betrayal. Vampires are divided—those who accept the light in their lives, and those who crave the dark. Now cultists are rising with Darian Vex. And the Ancients—banished monsters from a forgotten age—are stirring in their prison beneath Shadowkeep. Oh, and there’s one more problem. Him. A vampire. Read more