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4 1/2 prijatelja i nestala učiteljica biologije
Norbert and his friends in the detective club set out to explain the strange appearance and behavior of their attractive biology teacher.
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Biuro detektywistyczne Dziurka od klucza
Children have always loved puzzles. They are not afraid of thrills and shivers on their backs. Such impressions are provided to readers by the detective agency Keyhole. Even those resistant to the charms of literature, when they start reading this book, they can not get...