- The demon in the teahouse, Dorothy & Thomas Hoobler
- Seven paths to death, a samurai mystery, Dorothy & Thomas Hoobler
- Where are the Great Pyramids?, by Dorothy and Thomas Hoobler ; illustrated by Jerry Hoare
- Where is the Taj Mahal?, by Dorothy and Thomas Hoobler ; illustrated by John Hinderliter
- Hoobler, Dorothy, Samurai mystery
- A samurai never fears death, Dorothy & Thomas Hoobler
- What was the San Francisco Earthquake?, by Dorothy and Thomas Hoobler ; illustrated by Ted Hammond
- The monsters, Mary Shelley & the curse of Frankenstein, Dorothy & Thomas Hoobler