Demon 13. Dark Covenant (en Inglés) - Bruce Hennigan

What would you do if you woke up naked on a beach in a raging thunderstorm, beaten and bleeding and realized you didn't know who you were? That happened to Jonathan Steel and in the months of healing and rehabilitation that followed only brief glimpses of his former life resurfaced. During his time in a psychiatric ward, he met a murderous insane inmate possessed by an evil presence. This evil presence brought tragedy into Steel's life in the months after leaving the hospital.

Now, he searches the countryside for his arch enemy, the 13th demon. Filled with rage and thirst for revenge, his quest under the guise of helping others brings him to Lakeside, Louisiana. A small country church has come under the influence of evil. Could this be the demon Jonathan is chasing? Steel puts together a team of experts to confront the thing living in the church. And, in the process, something happens he hoped would never happen again when love enters his life.

As he faces his final confrontation with an evil presence that he discovers has pursued him all of his life, he must choose between helping the people he has come to care about or to destroying the 13th demon in a final confrontation between good and evil.