- Series: Extreme Zone Series Record # 5135
- Series Tags: young-adult horror (3)
- Extreme Zone
- 1 Night Terrors (1997) by Mark Sumner [only as by M. C. Sumner]
- 2 Dark Lies (1997) by Mark Sumner [only as by M. C. Sumner]
- 3 Unseen Powers (1997) by Mark Sumner [only as by M. C. Sumner]
- 4 Deadly Secrets (1997) by Mark Sumner [only as by M. C. Sumner]
- 5 Common Enemy (1997) by Mark Sumner [only as by M. C. Sumner]
- 6 Inhuman Fury (1997) by Mark Sumner [only as by M. C. Sumner]
- 7 Lost Soul (1997) by Mark Sumner [only as by M. C. Sumner]
- 8 Dead End (1998) by Mark Sumner [only as by M. C. Sumner]