- Series: Middle-Earth Quest Series Record # 6038
- Sub-series of: Tolkien Quest
- Middle-Earth Quest
- Rescue in Mirkwood (1986) by Gerald Lientz
- Treason at Helm's Deep (1988) by Kevin Barrett and Saul Peters
- A Spy in Isengard (1988) by Terry K. Amthor
- Mines of Moria (1988) by Susan Mathews and John Ruemmler [only as by Susan Mathews and J. D. Ruemmler]
- Search for the Palantir (1989) by Milt Creighton
- Murder at Minas Tirith (unpublished) by John Ruemmler