18 titles- The Hammer and the Cross (Oxford, Oxfordshire: Alder Publishing, 1980) with Allan Scott
- Fantastic People: Magical Races of Myth and Legend (London: Pierrot Publishing, 1980) with Allan Scott
- Run to the Stars (London: Arrow Books, 1983) as Mike Scott Rohan
- First Byte: Choosing and Using a Home Computer (Wakefield, West Yorkshire: EP Publishing, 1983)
- The Winter of the World, Volume One: The Anvil of Ice (London: Macdonald, 1986)
- The Ice King (London: New English Library, 1986) with Allan Scott writing together as Michael Scot
- The Winter of the World, Volume Two: The Forge in the Forest (London: Macdonald, 1987)
- Burial Rites (New York: Berkley Books, 1987) with Allan Scott writing together as Michael Scot
- The Winter of the World, Volume Three: The Hammer of the Sun (London: Macdonald, 1988)
- Chase the Morning (London: Orbit, 1990)
- The Gates of Noon (London: Victor Gollancz, 1992)
- A Spell of Empire: The Horns of Tartarus (London: Orbit, 1992) with Allan Scott
- Cloud Castles (London: Victor Gollancz, 1994)
- The Lord of Middle Air (London: Victor Gollancz, 1994)
- Maxie's Demon (London: Orbit, 1997)
- The Castle of the Winds: A Winter of the World Novel (London: Orbit, 1998)
- The Singer and the Sea: A Winter of the World Novel (London: Orbit, 1999)
- Shadow of the Seer: A Winter of the World Novel (London: Orbit, 2001)