I should also check if there's a book titled "Libro 2" that's a follow-up or a different series. But in the Dune series, after "Dune" (Book 1) comes "Children of Dune" (Book 3), with a gap; the second book is actually "Dune Messiah," which is the sequel to "Dune." Wait, the original Dune trilogy is Dune, Dune Messiah, and Children of Dune. So maybe there's confusion here. The user might be mixing up the titles or the order. They mentioned "El Mesías de Dune" as Book 2, but that's actually the second book in the original trilogy. However, the Spanish translation of "Dune Messiah" is "El Mesías de Dune," which is the second book, and "Hijos de Dune" would be "Children of Dune," the third.