Cambion by Candace Nola

When a group of Creative Writing students take a trip to an old farm, the site of an exorcism gone wrong, for a night of storytelling and real-world immersion, painfully shy and introverted Macy comes home with more inspiration than she bargained for. 

What evil did they awaken? And will Macy survive long enough to find out what really happened at the farm a hundred years ago?