First, I need to confirm if "Jack Escarcha" is indeed referring to Javier Escario (El Escarcha). Maybe it's a mistranslation or a nickname. Then, "El Final es el Principio" as a title doesn't immediately ring a bell in terms of known works by El Escarcha. However, they've covered various topics, including conspiracy theories, tech, and more. It's possible there's a video with that title, and the user wants an EPUB version of its content or a summary.