I've arrived at a bit of a stumbling block: the main character finds a children's picture book that offers a lot of exposition into his world's mythos. Hopefully, this inclusion will pay off and clue the reader into many important plot elements. I remember Orwell doing something very similar in 1984, when Winston reads 'The Theory and Practice of Oligarchical Collectivism'. The problem is, it wasn't very good. I hope to avoid the same mistakes I feel Orwell made, and some points are already obvious. Don't write for pages and pages and pages, and don't outright dump information but allude to it instead. But it still doesn't seem like enough. I've tried to abridge the text in the children's book to a very short length, but it has the exact opposite effect and feels far too short to be substantial enough. It occurs right after a huge chunk of exposition as well, so if I pad it out even slightly the reader will probably be bored to tears. My main point is: how do I pull off this story-within-a-story technique without being overly obnoxious about it?