Ghost Hand (The PSS Chronicles #1‪)‬

Seventeen-year-old Olivia Black has a rare birth defect known as Psyche Sans Soma, or PSS. Instead of a right hand made of flesh and blood, she was born with a hand made of ethereal energy.

How does Olivia handle being the girl with the ghost hand? Well, she's a little bit morbid and a whole lot snarky.

Her mother thinks her obsession with death, black clothing, and the local cemetery is a bid for attention. But when Marcus, the new guy in Olivia's calculus class, stares at her like she's a freak, Olivia doesn't like it. And when her hand goes rogue, doing things she never imagined possible, Olivia finds herself running for her life with Marcus from a group of men bent on taking the power of her hand for their own nefarious purposes.