Jeffrey and the Fourth Grade Ghost
1 Max Is Back (1988)
2 Haunted Halloween (1988)
3 Christmas Visitors (1988)
aka Max's Secret Formula
Max Onstage? (1989)
Max Saves the Day (1989)
4 Pet Day Surprise (1989)
aka Mad Science
5 Camp Duck Down (1990)
6 Big Brother Blues (1990)
2 Haunted Halloween (1988)
3 Christmas Visitors (1988)
aka Max's Secret Formula
Max Onstage? (1989)
Max Saves the Day (1989)
4 Pet Day Surprise (1989)
aka Mad Science
5 Camp Duck Down (1990)
6 Big Brother Blues (1990)