Donnie stops and turns, just long enough to hold a hand up to his mouth. "Shhh," he says. Doesn't Leo know they're in a library?

And then he's off again. Leo's following so that should be okay, right?

He's not even sure what section he's heading towards, but his current path of exploration is quickly disrupted as he walks by the computers. Instantly his little steps detour towards the desks- not quite running because you probably shouldn't run in a library either but they don't say anything about fast walking!