Swallows and Amazons

1. 

   Book 2

   Swallowdale (Swallows and Amazons #2)

   Arthur Michell Ransome

2. 

   Book 4

   Winter holiday

   Arthur Michell Ransome

3. 

   Book 7

   We didn't mean to go to sea

   Arthur Michell Ransome

4. 

   Swallows and Amazons

   Arthur Michell Ransome

5. 

   Secret water

   Arthur Michell Ransome

6. 

   Pigeon post

   Arthur Michell Ransome

7. 

   Peter Duck

   Arthur Michell Ransome

Book data and covers from Open Library (openlibrary.org).