Publisher's Synopsis
The detective story, and now we include the whole range of mystery or riddle stories, is founded on a fundamental human trait, inquisitiveness. Man is an incarnate interrogation point. The infant's eyes ask questions before his tongue can do so, and soon the inquiring eyes are supplemented by a little outstretched hand, trying to satisfy a curiosity by the sense of touch. But, once having achieved a vocabulary, however small, he uses it almost entirely to make inquiries, until so prominent becomes this trait, that his conversation is cut off altogether, and he is condemned to be visible but not audible.Attaining further intelligence, his inquiries become more definite and thoughtful, though no less numerous and eager. He seeks books, whether in or out of running brooks; he inquires of authorities, or he reasons out answers for himself, as he grows in body and brain. He meets a friend in the street, he pours out questions. In his business he progresses by one question after another. Is he an inventor? He questions of Nature till he probes her various secrets. Is he a philosopher? He questions his soul.
