Leo finishes a section and looks up. He spots the pile of books first (they may need a bag for all these), but he doesn’t see Donnie right away.

His heart doesn’t have time to plummet, though, because Donnie isn’t far - he’s just scaling the bookcases like he thinks he’s a toddler mutant ninja monkey.

Leo puts his book away and starts to come after him. “Where ya goin’, bud?”

Should he be more concerned about this than he is?