Devil Without a Cause [Book One of the Power of Three]

David Hamilton didn't think a weekend visiting his younger cousin Sam Winchester at college would be of much significance, other than for how much fun they would have. He said yes to Sam's invitation in a heartbeat. When Sam's older brother Dean showed up at the very start of the weekend informing Sam that their father, John, had gone missing, Dave gets pulled into a family secret that his parents had kept him away from all his life. Dave, along with his girlfriend Winter and their best friend Gen, find themselves pulled onto a mission to rescue their parents from things they never believed existed before, and end up right in the middle of a fight against evil.