Please note: I do not have access to local files on your computer, including D:\Canh\Hugo\Lbibinders-nguyenhuyhieu1204\node-Lbibinders\HTML\avp comic book.txt. Therefore, I cannot derive the H2 and H3 headings directly from that specific content as requested. Instead, I have created suitable and thematically relevant H2 and H3 headings that align with the main topics of the website and the concept of “undefined” as a journey of discovery within literature, ensuring they fit within the 3-5 heading requirement.