# The Mark on the Door

> book by Franklin W. Dixon

**Wikidata**: [Q7750370](https://www.wikidata.org/wiki/Q7750370)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/The_Mark_on_the_Door)  
**Source**: https://4ort.xyz/entity/the-mark-on-the-door


## References

1. [Source](https://openlibrary.org/works/OL47897W/The_Mark_on_the_Door?edition=ia%3Abwb_W7-CNW-514)