In 1599 , he published the first part of GuzmÃ n de Alfarache . It was a well liked book which was printed in at least sixteen editions in five years . In 1599 , he published the first part of GuzmÃ n de Alfarache , a celebrated picaresque novel which passed through no less than sixteen editions in five years ; a spurious sequel was issued in 1602 , but the authentic continuation did not appear until 1604 .