Well, despite saying I'd never do this, I stayed up ridiculously late tonight to finish my NaNoGenMo entry. FWIW, only one night, though, not a series!
It's no longer about burrows, but rather about finding a friend in space. Appropriately titled, Where in Space Is My Friend???
Unsure how readable it is at 50 pages (which I did in the spirit of the challenge), but probably readable at 12 pages or so.
Here is the app I made
to make it. You can hit "clear seed" to generate a new page. Was originally going to do an automated thing with Puppeteer, but in the end, I just glued screenshots of it together into a PDF.