
| Order | Book | Date | Rating |
|---|---|---|---|
| 1 | Fourth Floor Twins and the Fish Snitch Mystery | May-1985 | 0 |
| 2 | Fourth Floor Twins and the Fortune Cookie Chase | May-1985 | 0 |
| 3 | Fourth Floor Twins and the Disappearing Parrot Trick | May-1986 | 0 |
| 4 | Fourth Floor Twins and the Silver Ghost Express | Oct-1986 | 0 |
| 5 | Fourth Floor Twins and the Skyscraper Parade | May-1987 | 0 |
| 6 | Fourth Floor Twins and the Sand Castle Contest | Oct-1988 | 0 |