This essay examines Baudelaire's use of the figure of child in his theorization of the flâneur , and it argues for the possibility of a specifically child flâneur by considering New York children's literature like Enright's The Saturdays , Fitzhugh's Harriet the Spy , Konigsburg's From the Mixed-up Files of Mrs. Basil E. Frankweiler , and Hamilton's The Planet of Junior Brown .