Personal Demons is the first book in the Personal Demons trilogy by American author, Lisa Desrochers. This young adult, urban fantasy series centers around Frannie Cavanaugh, a good Catholic girl with a unique skill she's unaware she possesses, who finds herself in a battle for not just her soul, but also her heart, between Lucifer Cain, a demon sent by the king of Hell to tag Frannie's soul, and Gabriel, the angel sent to protect her.