"Don Quijote" (also known as "Don Quixote") is a classic novel written by Miguel de Cervantes, first published in 1605. The book is considered one of the greatest works of literature in the Western canon and tells the story of a nobleman, Alonso Quijano, who becomes obsessed with chivalric romances and sets out on a journey with his squire, Sancho Panza.
If you're looking for a PDF book that combines "Erase una vez..." and "Don Quijote", I couldn't find any specific information on such a book. However, it's possible that a publisher or author has created a compilation of the two works.
If you're interested in reading "Don Quijote", I recommend looking for a PDF version that is in the public domain, as this will ensure that you're accessing a legitimate and free copy of the book.
If you're looking for a PDF version of "Erase una vez...", I recommend checking with the publisher or Isabel Allende's official website to see if they offer a digital version of the book.