Mrs. Whatsit asks for a Russian caviar sandwich andCharles Wallace angrily responds saying, you peeked. Why does the author choose these words...

When
Charles responds to Mrs. Whatsit's request for a Russian caviar sandwich with, "You
peeked!" I think the tone is perhaps not quite angry, but closer to mock outrage. He has
already, in this chapter, expressed his fondness for Mrs. Whatsit, referring to her and her
friends as "very enjoyable." Charles is...