Rachel Vincent 
My Soul to Lose (A Soul Screamers Short Story) [EPUB ebook] 

It was supposed to be a fun day, shopping at the mall with her best friend.Then the panic attack started and Kaylee Cavanaugh finds herself screaming, unable to stop. Her secret fears are exposed and it’s the worst day of her life. Until she wakes up in the psychiatric unit.She tries to convince everyone she’s fine-despite the shadows she sees forming around another patient and the urge to scream which comes burbling up again and again. Everyone thinks she’s crazy. Everyone except Lydia, that is. Another patient with some special abilities. .