User blog comment:Drache Mace/Who was Yang looking for?/@comment-24177652-20140811000439/@comment-96.254.157.84-20140811000920

No, Summer is definately dead. But I've always been on board with Yang's mother, who I want to assume walked out on her when she was born. So maybe after Summer (who most likely took care of Yang her entire life) died, she begins to question why her own mother left and wants to find her to know.