Final answer:
Beryl believes her brother would be upset because her discouragement of Sir Henry conflicts with their sense of duty and could be seen as lacking faith in her brother's abilities to handle the dangers of Baskerville Hall.
Step-by-step explanation:
Beryl is a character who believes her brother would disapprove of her attempts to discourage Sir Henry from moving to Baskerville Hall due to the potential dangers associated with it. The brothers likely have a strong sense of duty or moral obligation, suggesting that they believe in confronting challenges or threats directly, instead of avoiding them.
Beryl might also worry that her actions could be perceived as undermining or lacking faith in her brother's judgment or abilities.