Check if there's a possible confusion with the author's name. Isabel Ibáñez is an author, but maybe there's another author with a similar name? Probably not, but still, ensuring the name is correctly spelled. No, "Isabel Ibáñez" seems correct as per her published works.
Also, the user might be interested in similar books. Maybe they want a recommendation for a similar book that's free. But the focus here is on "El Secreto del Río," so sticking to the main suggestion is important. Need to avoid any mention of illegal sources like torrent sites or file-sharing platforms. Keep the response helpful and positive, guiding them toward ethical solutions.
"El Secreto del Río" by Isabel Ibáñez is a children's book, likely a fantasy novel since Ibáñez is known for works like "Misión Perdida" which have fantasy elements. The user is probably looking for a free EPUB version of this book. But wait, they might not know the exact title in English, so I should consider that possibility. The correct English title might be "The Secret of the River" to check for any translations.
I should inform the user that sharing or downloading copyrighted material without permission is illegal and unethical. Instead, suggest legitimate ways to access the book: purchasing from online retailers like Amazon or Google Play Books, borrowing from a library if available, using legal download platforms like Barnes & Noble, or checking if the library offers digital loans through services like OverDrive.
Now, legal vs. pirate versions. If the book is still under copyright, distributing it for free without permission is illegal. I need to make sure the user knows the importance of respecting authors' rights. Providing a free EPUB link from an unauthorized source would be against guidelines. Also, if the book is out of print or in the public domain, that's a different story, but Ibáñez is a contemporary author, so her work is likely copyrighted.