Complex sentence: Gaining popularity, she was given a leading role alongside José Luis Garcia Pérez in the new follow-up series "Castillos en el Aire", based on "Plaza Alta".
Split into simpler sentences: Gaining popularity, she was given a lead role in the spinoff of the series alongside José Luis Garcia Pérez. Further success led to the pair working on the new series "Castillos en el Aire", based on "Plaza Alta".