What book in The 39 Clues comes after Sword

The book that comes after *Sword* in The 39 Clues series is The Cipher.

The order of the books is:

1. The Maze of Bones

2. The Sword Thief

3. The Cahills vs. Vespers

4. The Secret of the Old Clock

5. The Curse of the Cave

6. The Serpent's Shadow

7. The Black Pyramid

8. Beyond the Grave

9. The Vanishing of the Vespers

10. The Sword

11. The Cipher

12. The Emperor's Code

13. The Last Oracle

14. The Scorpio Races

15. The Crown of Ptolemy

16. The Iron Trial

Let me know if you have any other questions about The 39 Clues!