You'll find they've got you by the proverbials.

As a result, particles of wood and twigs insufficiently coaled are frequently found at the bottom of such pits.

Some of the students — namely Paul, Alice and Jake — seem to have trouble with geometry.

And the Duke thought: The truth could he worse than he imagines, but even dangerous facts are valuable if you’ve been trained to deal with them. And there’s one place where nothing has been spared for my son—dealing with dangerous facts.