Amelia had promised her mother that she'd retire her "bitch, please" face, but, upon hearing that Helen actually believed that Robert would be proposing that afternoon (in a hot-air balloon, no less!), no other expression would do.
"Not since the great deviled-egg crisis of the summer of '49 have so many people been so wrong about so much," Amelia thought. Robert might be proposing something in a hot-air balloon this afternoon, but it wouldn't be marriage, and it wouldn't be to Helen. If only Amelia could get the blueprints in time!