Every one of them was chalky pale, the palest of all the students living in this sunless town.
问大神，逗号后面是目前分词短语吗，目前分词短语可以不以ing开头，在ing前面有living in的动作者？
Every one of them was chalky pale, the palest of all the students living in this sunless town.
=Every one of them was chalky pale, who are the palest of all the students living in this sunless town.（剖析为非限制性定语）
=Every one of them was chalky pale and they are the palest of all the students living in this sunless town.living in this sunless town目前分词作后置定语，修饰名词“students”
the palest of all the students living in this sunless town. 为主语同位语/非限制性定语
the palest of +名词复数+后置定语 为形容词最高级作句子同位语或者非限制性定语。
