Check the Archive section in your Paimon Menu in-game. Every book you collect in Teyvat is stored there safely, including the darker tales of the world's history.
Here is a deep dive into what this "Libro" represents and how to stay safe while engaging with fan content. The Mystery of the "Libro de Derrotas" Download Libro derrotas Genshin zip
Files labeled as "Genshin mods" or "exclusive books" in .zip format are common delivery methods for info-stealers. These scripts can target your browser cookies and HoYoverse account credentials. Check the Archive section in your Paimon Menu in-game