World of Caves, Mines and Tunnels (One-off)
by Bruce Hogarth, Colin Sullivan, Stephen Hoare
ISBN 13: 9780750022552
Format: Hardcover (44 pages) Publisher: Hodder Wayland Published: 31 Jan 1999
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Extraterrestrial: 6 (Mysterious World)
by Ivor Baddiel, Tracey Blezard, Colin Sullivan
ISBN 13: 9780750025317
Format: Paperback (30 pages) Publisher: Wayland Published: 28 Feb 1999
The Future (Mysterious World)
by Ivor Baddiel, T.A. Blezard, Doug Gray, Colin Sullivan
ISBN 13: 9780750027687
Format: Paperback (30 pages) Publisher: Hodder Wayland Published: 16 Mar 2000