Reddit reviews The Dark Is Rising (Boxed Set): Over Sea, Under Stone; The Dark Is Rising; Greenwitch; The Grey King; Silver on the Tree (The Dark Is Rising Sequence)
We found 4 Reddit comments about The Dark Is Rising (Boxed Set): Over Sea, Under Stone; The Dark Is Rising; Greenwitch; The Grey King; Silver on the Tree (The Dark Is Rising Sequence). Here are the top ones, ranked by their Reddit score.
Used Book in Good Condition
Take a look at Susan Cooper's The Dark is Rising series.
Susan Cooper has a great series called "The Dark is Rising" It starts with "over sea and under stone" and continues from there. They sell the whole series. This was my absolute favorite series as a kid and actually was the book that started my love of reading. (i was not too big into reading before that.)
http://www.amazon.com/Dark-Rising-Boxed-Set-Greenwitch/dp/1416949968
Do not be confused with the horrible movie they made based on the second book. That just sucked.
Horatio Hornblower series by C. S. Forester, most definitely! Then you'd have to list all the stuff that's been based off that series, which is down the bottom of the wikipedia page.
And I know this is a bit out there for you, but you could call this supplementary - it's historical fiction with dragons. His Majesty's Dragon (Temeraire, Book 1) by Naomi Novik.
For the girls, you could get them to read the stuff by Georgette Heyer. Heyer was a romance novelist whose research library for British period customs and clothing was fiercely fought over by museums and libraries when she died. She wrote things that are both engaging and truly capture the flavor of the timeframe; she didn't impose modern morals and anachronisms onto her fiction.
Sherlock Holmes? Pick a few of the classic stories and maybe analyze the differences between society then in Victorian England and today. As a companion, you could get them to read the bit in A Bloody Business: An Anecdotal History of Scotland Yard which discusses Arthur Conan Doyle and his contributions to social change in Victorian London.
Then there's the Mabinogi, which has inspired tons of other works, and you could pair that with Susan Cooper's Dark Is Rising Series - there's only one book in there that really draws from/deals with Welsh myth, but it's a good one.
Could it be The Dark is Rising, by Susan Cooper? There are five books in the series, all of them are excellent.