original: while it is a self-contained story , the book continues and develops many of the themes touched on in the first book .
simplifications: while it is a self-contained story , the book continues and develops many of the themes touched on in the first book . while it is a complete story , the book continues and develops many of the themes introduced in the first book . while it is a stand-alone story , the book continues many themes visited in the first book . while it is a self-contained story , the book continues and develops many of the themes touched on in the first book . while it is a self-contained story , the book continues and develops many of the ideas touched on in the first book . the second book in the series is a self-contained story , yet still continues from the first book . while it is a self-contained story , the book continues and develops many of the themes touched on in the first book . it is a self-contained story , but continues and develops many of the themes touched on in the first book .