# The Hidden Harbor Mystery

> book by Franklin W. Dixon

**Wikidata**: [Q7739547](https://www.wikidata.org/wiki/Q7739547)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/The_Hidden_Harbor_Mystery)  
**Source**: https://4ort.xyz/entity/the-hidden-harbor-mystery


## References

1. [Source](https://archive.org/details/isbn_0448089149)
2. Goodreads