"shade of death..."
See in text (On the Death of Anne Bronte)
The nouns and noun phrases “Failing breath,” “sighs, “shade of death” all invoke a romanticized vision of death. The speaker emphasizes the beauty and drama of her subject’s dying hour in much the way Gothic romances found beauty in the grotesque and frightening. In this description, the speaker turns this moment of death into a moment of literary beauty that partially obscures the reality of the situation.