Have you had to make a decision that couldn't be made? Have you ever wondered what it felt like to know that you can't save everyone? That a lot of the people were going to die? That the role you play in your life and others have the end of a tragedy? Mara Briar Remington discovers a surprise concerning her life. The young woman is not where she thought she'd be-- she comes from a long line of human-god hybrids, called Twilight hunters, who hunt demons. After she saves a young girl, Mara is thrust into the world of demon-hunting. Mara relies on old friends Ollie and Billy along with fellow hunters Kylie and Jason to help her navigate the dark world. While living in this new world among creatures like vampires and werewolves, Mara's former best friend and sister, Evelyn helps her uncover answers that could help her find out who she is and stop Martin Carleton to save the world. [{Book 1 in the Transient Devices series}]