The Ishbane Conspiracy by Randy Alcorn

Jillian is picture-perfect on the outside, but terrified of getting hurt on the inside. Brittany is a tough girl who trusts almost no one. Ian is a successful athlete who dabbles in the occult. And Rob is a former gang-banger who struggles with guilt, pain, and a newfound faith in God. These four college students will face the ultimate battle between good and evil in a single year. As spiritual warfare rages around them, a dramatic demonic correspondence takes place. Readers can eavesdrop on the enemy, and learn to stave off their own defeat, by reading The Ishbane Conspiracy.