# The Clue of the Black Keys

> 1951 novel by Carolyn Keene

**Wikidata**: [Q7723545](https://www.wikidata.org/wiki/Q7723545)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/The_Clue_of_the_Black_Keys)  
**Source**: https://4ort.xyz/entity/the-clue-of-the-black-keys