Question:
And quickly!

Does it follow that "And fast!"?
Answer:
yes

Question:
Natalia didn't comment, though her expression was even more dour than usual.

Does it follow that "Natalia was almost always quiet and sad."?
Answer:
it is not possible to tell

Question:
He let go the cage which swung back and forth pendulum-fashion.

Does it follow that "The cage held a man in a bird costume."?
Answer:
it is not possible to tell

Question:
The Georgian interior of the ground floor is worth a look.

Does it follow that "The interior is Georgian."?
Answer:
yes