Multiple choice general knowledge

In which story does Tintin meet Professor Calculus?

  1. The Broken Ear

  2. The Calculus Affair

  3. The Secret of The Unicorn

  4. Red Rackham's Treasure
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Professor Cuthbert Calculus (Professeur Tournesol in French) first appears in Red Rackham's Treasure (1943). He is introduced as a hard-of-hearing inventor who joins Tintin and Haddock's treasure hunt. The Calculus Affair (1956) is a later adventure centered around him.

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