Tension builds as the story moves along the continued flashbacks keeps you on your toes not knowing whats to come but also foreshadowing said events (idk if i explained it clearly )
Mostly he babbled instructions to a tree, thinking it was his assistant Percy Weasley, but then, his Imperius curse wearing off, he stammered that he has to see Dumbledore. (GoF28 'The Madness of Mr. Crouch', pp. 553-556). I hope my answer has come to your help. God bless and have a nice day ahead!
I feel like it's implying that, Britannia is in a very very weary deep thought process.
I mean, droops can be referred to weary, and pensive means thought, or a deep thought.
However, weary could be tired. This is completely an assumption.
<span> "I never couldn't see into it; young uns is heaps of trouble to 'em; one would think, now, they'd be glad to get clar on 'em; but they aren't." </span>