Kaptein Onderbroek #4: Kaptein Onderbroek en die wraak van professor Poepenpoel
George and Harold are in fourth grade and they love playing pranks. When their latest prank drives their science teacher crazy, their principal, Mr. Mor, immediately finds someone to replace him: Professor Poepenpoel.
George and Harold have a great time mocking the professor's silly name. But then the professor takes revenge. He forces everyone in the city to have silly names too - and tries to take over the whole world!
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Description
George and Harold are in fourth grade and they love playing pranks. When their latest prank drives their science teacher crazy, their principal, Mr. Mor, immediately finds someone to replace him: Professor Poepenpoel.
George and Harold have a great time mocking the professor's silly name. But then the professor takes revenge. He forces everyone in the city to have silly names too - and tries to take over the whole world!
