The Dark Tower

1. 

   Book 1

   The Gunslinger

   Stephen King

2. 

   Book 2

   The Drawing of the Three

   Stephen King

3. 

   Book 3

   A Torre Negra

   Stephen King

4. 

   Book 4

   Wizard and Glass

   Stephen King

5. 

   Book 5

   Wolves of the Calla

   Stephen King

6. 

   Book 6

   Song of Susannah

   Stephen King

7. 

   Book 7

   The dark tower

   Stephen King

8. 

   Book 8

   The Wind Through the Keyhole

   Stephen King

9. The Little Sisters of EluriaStephen KingKing

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   The Little Sisters of Eluria

   Stephen King

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