Two more sequel books were promised to be available (Search for the Palantír and Race from Rivendell), but never reached publication.
From the publisher
COME TO MIDDLE-EARTH!
The world of brave and cruel Men, Hobbits and Elves, Dragons and Dwarves, Orcs and Trolls, and Wizards both good and evil lives on in this series of Middle-earth Quest gamebooks. You too can now become entwined in the world's richest tapestry of high fantasy.
- Aventuras en la Tierra Media (Spanish)
- Aventuras na terra-media (Portuguese)
- Äventyr i Midgård (Swedish)
- Mittelerde-Questbucher (German)
- La terra di mezzo (Italian)