Read this episode from “A Brother’s Quest” and answer the question. (Lord Vanderpool’s study. Alexander enters.)

Alexander: At last! After three weeks disguised as a servant, I’ve finally got a chance to sneak in here. I know Lord Vanderpool framed Niall, and I know the proof is in this hidden study.

(searches desk)

Nothing! Where could he have hidden it?

Someone’s coming!

(hides)

(Lord Vanderpool and his clerk enter)

Lord Vanderpool: I’ve just received word that Niall Westmore has confessed to stealing the king’s seal. I must write to the king with my sympathy.

Clerk: Yes, sir. I’ll fetch paper and ink and we’ll return to the public office.

(exit)

Alexander: What? This can’t be right. Niall wouldn’t have done that, would he? I’ve got to find proof that he’s been framed!

(searches study)

I can’t find anything. Here are all of Lord Vanderpool’s secret dealings, but nothing about the king’s seal. Niall can’t have done it, but why would he confess?

Based on events in this episode, how does Alexander change?