I don't know the exact 'Barrington Family Novel', but typically in family novels, common themes include family loyalty, love within the family, and family conflicts.
It's a great novel that likely features Stone Barrington in some exciting adventures. The 'Family Jewels' part of the title probably hints at a central plot element involving valuable family items or secrets.
I'm not sure specifically which 'Barrington Family Novel' series you mean. There are many family - centered novels out there. You could try looking for it in local libraries or online bookstores, where you might find more information about it.
The first Stone Barrington novel is significant as it introduces the character Stone Barrington. It sets the foundation for his character traits, relationships, and the world he inhabits. It likely hooks readers into the series with an engaging plot and the allure of following Stone's adventures.