Défis Fantastiques is a 42-book series with 42 primary works first released in 1985 with contributions by Andrew Chapman, Ian Livingstone, and 17 others.
1985 • 3 Readers • 208 pages • 4
1985 • 4 Readers • 3.5
1986 • 3 Readers • 240 pages • 4
1987 • 1 Reader • 256 pages
1988 • 1 Reader • 208 pages
1989 • 2 Readers • 288 pages
1989 • 2 Readers • 272 pages • 4
1990 • 1 Reader • 256 pages
1991 • 1 Reader • 288 pages
1992 • 3 Readers • 208 pages