Real scientists are people with a special mindset, they are appreciated because there are not so many of them on our planet. Donald and Betty are the heroes of the Search and Research game, promising young scientists, they still need to gain experience, and therefore they learn from the best representatives of their profession. Their teacher, Professor Stephen, is a well-known scientist in his circles. There has been no news from him for several days. He does not appear at the department at the institute and he is not at home either. His assistants are worried and begin their investigation. The probable reason for his disappearance may be his research. The heroes do not want to let the police know about it yet, because then they will not be allowed to interfere with the investigation in Search and Research. But they will not refuse your help.
