User blog comment:PUNCHURPREGNANT/Gray and Silver Predictions/@comment-82.45.146.195-20140609104852/@comment-7418318-20140623094020

Because it's the title of the entire part, not the chapter. In a way the first chapter of each part has no title for itself. It was the same with "Song of the Sky Dragon" for example, which had a few chapters with no or barely any focus on Wendy, before the story concentrated almost exclusively on her close to the end of the part.