# Agatha Christie's Secret Notebooks: Fifty Years of Mysteries in the Making

> book by Agatha Christie

**Wikidata**: [Q10342138](https://www.wikidata.org/wiki/Q10342138)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Agatha_Christie's_Secret_Notebooks)  
**Source**: https://4ort.xyz/entity/agatha-christie-s-secret-notebooks-fifty-years-of-mysteries-in-the-making