Sina Grace 
Ghosted in L.A. #7 [PDF ebook] 

The one condition of Daphne’s residency at the Rycroft Manor-no one can find out about the ghosts. So far, Daphne is crushing it. Only, like, four people have found out. It’s fine! Except, maybe not, because the most recent person to find out is her ultra-religious former roommate, who knows too much about exorcism for comfort.