I hope it something utterly banal like a grocery list. That would be hilarious
Most or all of the Villa scrolls have been by a single author, an Epicurean philosopher. So, y'know, fascinating to specialists but dull as dirt to most of us. :^) The scrolls were found packed and ready to flee with, if memory serves, but were left behind. I'm tempted to think that the more interesting books had also been packed and some had to be left behind, so... :^)