The invocations

"Three girls, one supernatural killer on the loose ... Zara Jones believes in magic because the alternative is too painful to consider--that her murdered sister is gone forever and there is nothing she can do about it. Rather than grieving and moving on, Zara decides she will do whatever it takes to claw her sister back from the grave--even trading in the occult. Jude Wolf may be the daughter of a billionaire, but she is also undeniably cursed. A...