The Secret of Terror Castle
| Author | Robert Arthur, Jr. |
| Genre | Fiction, Novel, Juvenile Fiction, Detective, Mystery |
| First published | 1964 |
| Original Language | English |
| First published | 1964 |
| Links | https://www.threeinvestigatorsbooks.com/Terrorcastle.html |
| Notes | The Secret of Terror Castle is a children's novel by Robert Arthur, Jr., and the first book in The Three Investigators series. |
Editions 1
Add Edition| Title | Publisher | Format | Language | Location | Dates | Impression | |
|---|---|---|---|---|---|---|---|
 | 3 etsivää ja kauhujen linna | Gummerus | Hardback | Finnish | Finland | 1975 |