Final answer:
The provided references do not offer enough context to accurately answer why Isabel is happy when visiting Captain Cample or what she tells him. More information or specificity about the text in question is needed.
Step-by-step explanation:
The question seems to be related to a specific event or interaction between Isabel and Captain Cample, presumably from a literary text. However, without a reference to a particular book or narrative, it's difficult to pinpoint the correct answer. The provided references do not contain enough context to determine why Isabel is happy when she goes to see Captain Cample or what she tells him. Typically, in literature, characters may express happiness for various reasons such as receiving good news, accomplishing a goal, or experiencing a positive change in their circumstances.