Avoid suspicious websites promising a “direct PDF download.” These often contain malware. Protect your device!

: O portal oferece cópias completas para consulta e download, incluindo edições em português e espanhol.

This remains the best "free" option. Most municipal libraries have copies of A Search in Secret India (or the Portuguese translation). Many libraries now offer digital lending services (like OverDrive/Libby) where you can borrow the ebook for free with a library card.