| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Butterflies/Bugs Panic Puzzle | 978-1-879424-65-4 (1-879424-65-7) | 1994 |
| Planets/Constellations Panic Puzzles | 978-1-879424-69-2 (1-879424-69-X) | 1994 |
| Sharks/Starfish Panic Puzzle | 978-1-879424-67-8 (1-879424-67-3) | 1994 |