in the book flush chapters 16- 17 why does Noah and Abbey’s moods go from the highest highs to the lowest lows after they escape from Luno and Dusty.

Noah called the Coast Guard and reported the sewage dumping by the Coral Queen. He told them his name was Paine Underwood and to look for a long purple trail in the water. He called Miles Umlatt at the Island Examiner with the same information. Abbey told Grandpa Bobby that for the last ten years, everyone thought he was dead. The rest of chapter seventeen is pretty much about Grandpa Bobby.