Came here for exactly this.

If you’re the dad in this comic and you’ve never played Tunic, this is your wake-up call. One if the core mechanics of the game is collecting the pages for the instruction manual in game so you can figure out how to play.

Well, following the link just below the flag took me to a website that has the answer. It’s a comic strip that was featured in the printed version of the Navy Times newspaper, for the US Navy.