The Soulseer Chronicles Series by Sue Tingey

In a world filled with charlatans, Lucinda "Lucky" de Salle's psychic ability has always made her an outcast, even as it has also made her a sought-after (if reluctant) investigator of paranormal phenomena. With no remaining family and very few friends, she has only one "person" she can rely on--Kayla, the ghost girl who has been her constant companion since she was born... moreIn a world filled with charlatans, Lucinda "Lucky" de Salle's psychic ability has always made her an outcast, even as it has also made her a sought-after (if reluctant) investigator of paranormal phenomena. With no remaining family and very few friends, she has only one "person" she can rely on--Kayla, the ghost girl who has been her constant companion since she was born.When Lucky is called in to investigate a spectral disturbance at the all-girls school she attended as a child, she isn't surprised. She herself had had a terrifying confrontation with the troubled spirits of two girls who died in the attic room. But when Lucky goes up to the attic, she discovers that the vicious little girls are the least of the problem--a demon has been released into this world, a creature of such malevolence that even the spirits of the two girls are afraid. When the demon demands that Kayla be handed over to him, Lucky realizes that this case will be like no other she has ever experienced.For one thing, it seems that her chatty, snarky spirit companion is not what she has always seemed to be... less

Able to see ghosts in both the human and daemon worlds, Lucky de Salle is a commodity . . . and a liability. When her best friend Kayla mysteriously disappears, she and her daemon guard stumble onto a secret that makes her even more of a danger to her enemies... moreAble to see ghosts in both the human and daemon worlds, Lucky de Salle is a commodity . . . and a liability. When her best friend Kayla mysteriously disappears, she and her daemon guard stumble onto a secret that makes her even more of a danger to her enemies.Now, Hunted by Henri le Dent, the daemon who tried to see her dead, and Amaliel Cheriour, the sinister executioner of the daemon court, Lucky has to rely on her wits, her inner strength, her friends and the emerging talents that make her more than she thinks she is. less

Having been dragged into the Underlands against her will, she discovered that she wasn't entirely human, lost her best friend, and found that her psychic abilities made her a desireable asset to her enemies. Protected by a ring of loyal guardians - and having no small defensive capabilities of her own - she has survived thus far. But now one of her guardians has been abducted and it is the duty of another to find and destroy him unless he can be rescued within forty-eight hours... moreHaving been dragged into the Underlands against her will, she discovered that she wasn't entirely human, lost her best friend, and found that her psychic abilities made her a desireable asset to her enemies. Protected by a ring of loyal guardians - and having no small defensive capabilities of her own - she has survived thus far. But now one of her guardians has been abducted and it is the duty of another to find and destroy him unless he can be rescued within forty-eight hours.But he has been taken to the Overlands where there is a dark plan in place that will involve the loss of human life on a huge scale. Can Lucky thwart her enemies and unite her guardians? Or will she lose everything? less