The Marvel The Mighty Thor: An Origin Story Illustrated Paperback 2012 Parragon is a gripping action-packed picture book based on the popular superhero, Thor. Aimed at ages 9-12, this fiction book by Marvel showcases the origin story of the mighty Thor in a captivating narrative illustrated by Marvel themselves. Filled with fantasy elements, this book is a must-read for young fans of superheroes and the Marvel universe.