- Series: Midnight Sentinel Series Record # 36068
- Midnight Sentinel
- Midnight Sentinel (1999) [SF] by Jens H. Altmann [only as by Jens Altmann]
- The Only Thing Necessary ... (1999) [SF] by Jens H. Altmann
- Coleman's Angel (2000) [SF] by Jens H. Altmann
- Diplomatic Impunity (2000) [SF] by Jens H. Altmann