Rachel Morgan / The Hollows series is a series of urban fantasy novels in an alternate history setting by Kim Harrison that take place primarily in the city of Cincinnati and a nearby enclave on the opposite side of the Ohio River nicknamed "The Hollows".
She makes a deal with the living vampire Ivy Tamwood and the pixy Jenks to give them the remaining wishes for their assistance in leaving the I.S.
After creating the Vampiric Charms freelance runner service, Ivy and Jenks become her partners in taking various runs, or 'missions', both together and separately.
In earlier books, she works to remove a death bounty placed on her by her former employer as well as freeing herself from a demon's curse.
In the most recent books, Rachel finds herself learning about and using ley line and demon magic, both in order to do her job and protect her life and the lives of her friends and family.
Ivy is six feet tall, elegantly thin, and very pale with long black hair and an Asian cast.
When the demons accidentally discover that he concealed the fact that Rachel can spindle ley line energy, he falls into disgrace.
After Rachel steals his summoning name from within the ever-after, he makes a deal with her, agreeing to take her on as a student and teach her demon magic to help regain his reputation and stay out of prison.
Rachel's pay from the FIB eventually becomes entangled in red tape, so Edden arranges for her to own Francis's car after he is murdered.
Ceri loved Al and chose to go with him into the ever-after rather than marry the elven prince she was betrothed to, grow old, and eventually die.
She is adept in demon magic and lived with Keasley until she became pregnant and moved into the Kalamack compound (supposedly as an undercover spy for Rachel, who Ceri claims is her Sa'han).
She and Trent act as a public couple, maintain a warm relationship, and co-parent Lucy and Ray, but neither has romantic feelings for the other.
Detective Glenn is the adoptive son of Captain Edden, he works with Rachel on several cases.
After Piscary forces Glenn to eat some Pizza, and Rachel and Ivy continue to introduced him to foods containing tomatoes which he now craves, much to his own chagrin.
In White Witch, Black Curse, we find out the vampire he was given to was Ivy's ex-boss, Art, whom she and Kisten had framed for a murder.
Nick has a number of professions such as demonologist, wizard (human that practices magic), and librarian, but his vocation is as a professional thief.
Considered a good and kind employer and city benefactor, he nonetheless murders people throughout the series and does several other morally questionable things, earning Rachel's derision.
In Pale Demon, Trent asks Rachel to help him on an "elf quest" that proves to be stealing his daughter Lucy (his and Ellasbeth's).
In A Perfect Blood, Trent admits to himself that he may be falling in love with Rachel, whom he rescues from a number of dangerous situations throughout the same book.