The Baby-Sitters Club Mysteries is a 17-book series with 17 primary works first released in 1991 with contributions by Ann M. Martin.
1991 • 3 Readers • 147 pages
1991 • 1 Reader
1992 • 1 Reader • 160 pages
1992 • 2 Readers • 176 pages
1993 • 1 Reader • 150 pages
1993 • 2 Readers • 4.5
1993 • 2 Readers • 2
1993 • 2 Readers • 145 pages
1994 • 1 Reader • 139 pages
1994 • 2 Readers • 145 pages • 3
1994 • 1 Reader • 153 pages
1995 • 1 Reader • 144 pages
1995 • 2 Readers • 149 pages
1996 • 1 Reader
1996 • 1 Reader • 141 pages
1998 • 1 Reader • 142 pages