The notebook mostly just has a list of crossed-out names, most of which start with 'Super'. There are a few doodles of what looks like a capital S in a pentagon, and a few side notes that aren't in any Earth alphabet. The symbols are very geometric, so it's understandable if they're mistaken for idle sketches.

"It's kind of a family tradition," Jon answers, tilting the notebook a bit so Sonic can't get a better look at it. He has no problem with getting help on this, but personal space, dude. "And it's a good idea if you're going to be using superpowers in public to make it so it's harder to trace back to you."