The Calculus Case

Professor Calculus invented a machine which breaks glass with sound waves. Some foreign countries (including a Totalitarian regime) are interested and send their spies. Tintin and Haddock must face perils to come and rescue the Professor.

1. 

   1. Frightening Lightning

   1964-03-10

2. 2. Z Rays

3. 3. Kidnapped

4. 4. Midnight Fright

5. 5. Steel Shark

6. 6. Tracked

7. 7. Operation Opera

8. 8. Bordurian Bullets

9. 9. Dead End

10. 10. Doomed

11. 11. The Big Blast

12. 12. Surprise in the Skies

13. 13. Tank Attack