The world’s most famous travelling reporter searches for the truth behind the theft of some priceless works of art. Tintin and his friends are holidaying in Syldavia with Professor Calculus, who has invented an amazing new duplicating machine. But a series of strange occurrences makes Tintin suspicious.

Who is the mysterious “King Shark…", and what does he want with Calculus’ machine? Is there a connection with the recent theft of famous works of art from the world’s leading museums? Tintin is determined to find out!