[ What he thinks is that he really hates vague puzzles like this. He has a brain rattling around inside his head most days even if I do not and while he's usually amenable to using it, he prefers it be for his own goals and not…whatever this is. A castle he's been brought to by the orders of others, being lectured to by an otter with so many secrets up its sleeve. ]

If he's the knight, he's not doing a very good job of it.

[ Standing around while directing other people to do his work for him. No doubt there are reasons for that, but Eustace doesn't have it in him to shake the answers out. ]

We don't seem to be the wizards though, unless there's another piece missing.

[ There are plenty of missing pieces left still. ]