There are 4 books in the Flambards series. The newest book is Flambards Divided which came out in 1982.

1
Flambards

Book cover of Flambards
When Christina is sent to live in the grand country house, Flambards, she doesn't know what to expect. Once there, she meets two young men, Mark and Will, trying to cope with their bad-tempered father. She also discovers a passion for horse-riding and a love for life in the country.…
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2
The Edge of the Cloud

The Edge of the Cloud
The second book in the "Flambards Trilogy", winner of "The Guardian" Children's Fiction Award. The author also wrote "Froggett's Revenge", "Skylark" and "Who, Sir? Me, Sir?".

3
Flambards in Summer

Flambards in Summer
1916.
The First World War is well underway, and Christina is one of the many women left behind. When she returns to Flambards, she finds much has changed. The house is buried in ivy, the paddocks are overgrown, and the once busy stables are deserted and desolate.

Christina vows to…

4
Flambards Divided

Flambards Divided
The old ivy-covered house of Flambards has seen many changes since Christina first arrived as a young girl. With the First World War coming to an end, Christina feels the time has come to leave the past behind and make a new future for herself. But she finds her loyalties…