Okay, so I'm new to this fandom so I don't know if this has been mentioned already, but Zuko asks a question to his father when he is in prison at the end of season three of ATLA that is keeping me awake at night.
WHAT HAPPENED TO ZUKO AND AZULA'S MOM?!!! I haven't watched the second series since I don't have a way to and I haven't been able to find any of the books anywhere, so what happens to Azula and Zuko's mom?