How many novels are in the C.S. Lewis series that the Brazilian series "Sítio do Picapau Amarelo" has been compared to?
Sítio do Picapau Amarelo (novel series):  The series is considered representative of Brazilian children's literature and as the Brazilian equivalent to children's classics such as C. S. Lewis, "The Chronicles of Narnia" and L. Frank Baum's "The Wonderful Wizard of Oz" series. The Chronicles of Narnia: The Chronicles of Narnia is a series of seven fantasy novels by C. S. Lewis.
seven