An owl? How does a bird take over a library?

[Taking the book back from Rudy, he can only assume this isn't a conventional animal they're talking about here.]

Well, in that case we should go and give him a piece of our minds. Why is everyone hiding out in the school? We should be fighting back!

[Yep, Jack's just going to put the last remaining book back on its shelf and wander off in search of this 'owl'. See you, Rudy~]