Q: In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.
Few of the puffs still resided on Popstar but many left to who knows where . " Those poor lost souls ... " The knight thought to himself . He remembered falling ... falling from the sky .... The sky was so deep and dark blue ... the stars were falling . The other puff creatures were'born'this way , too . Metaknight remembered how they fell like stars .
Question: What may have caused the puffs to leave Popstar ?
A:
They went astray .