Silver Cord

After a lifetime of being alone, Jim learns he has a brother; unfortunately this only living relative is in a coma without any expectation to recover. Obsessed, Jim learns astral projection to hunt down the spirit of his brother in an attempt to bring him back. Follow Jim in his experiments creating his own near death experiences as his soul travels to other dimensions and the rim of death.
 
Dr. Paul is a mental health therapist who specializes with patients who claim to have had extreme paranormal experiences. Some of his patients have allowed Dr. Paul to edit and publish their experiences. The series may be read in any order.