St. Clare's books in order

The St. Clare's series follows twins Pat and Isabel O'Sullivan through their years at a British boarding school, starting with their reluctant arrival and following them through each form.

Reading order

# Title Published Author Buy on Amazon
1 The Twins at St Clare’s 1941 St Clare’s Buy
2 The O’Sullivan Twins 1941 St Clare’s Buy
3 Summer Term At St Clare’s 1943 St Clare’s Buy
4 Second Form at St Clare’s 1944 St Clare’s Buy
5 Claudine At St Clare’s 1944 St Clare’s Buy
6 The Third Form at St. Clare’s 1944 St Clare’s Buy
7 Fifth Formers Of St Clare’s 1945 St Clare’s Buy
8 Kitty at St. Clare’s 1946 St Clare’s Buy
9 The Sixth Form at St. Clare’s 1946 St Clare’s Buy

The St. Clare’s series is a nine-book run of British boarding school stories that begins with The Twins at St Clare’s in 1941. Pat and Isabel O’Sullivan arrive at their new school under protest, convinced it cannot compare to their old one, but they soon find themselves caught up in the friendships, feuds, and fun that make up life at St Clare’s.

Each book covers a new term or form, with a cast of characters that grows as the twins progress through the school. Claudine, a French girl with a talent for getting out of trouble, becomes a fan favorite when she arrives in the fourth book. The later entries introduce Kitty and follow the girls into the senior forms. The books are short, episodic, and built around the kind of school-day drama — midnight feasts, sporting matches, strict teachers — that has kept young readers coming back to them for decades.

Frequently Asked Questions

How many books are in the St. Clare's series?

There are nine books in the St. Clare’s series, published between 1941 and 1946.

What is the first book in the St. Clare's series?

The first book in the St. Clare’s series is The Twins at St Clare’s, published in 1941.

What order should you read the St. Clare's books?

The St. Clare’s books should be read in publication order, starting with The Twins at St Clare’s (1941) and following the twins through each school year. The books build on previous terms, introducing new characters and developing existing friendships as the girls move up through the school.

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