Cosette expected to go fishing the next day with her grandparents and father. She didn't sleep properly last night despite being exhausted, as she was unable to adjust to this new environment. Also, she was excited to spend more time with her grandparents. Cosette had a long list to do this weekend with them since she wanted to make the most out of this weekend with them.
All that excitement and expectation, however, was thrown out of the window, as her grandfather and grandmother had a different plan. Although they prepared to go fishing in the pond within the ancestral home, Cosette didn't expect that they would be expecting guests to join this party.
Sitting on the folding chair near the pond, Cosette held the fishing rod with a blank — more like horrified — expression.