Of course, Katara noticed the next day that something was wrong with Tenzin's nose. "What happened to you?"
"I ran into a door."
"Don't lie to me," she snapped. "That's one of the most on point nose punches I've ever seen. He wrecked your nose, whoever he was."
When Tenzin wouldn't tell her what happened, Katara sicced Toph on him only to hear, "It was your charming son in law. He decked me okay."
"KUZON!" Katara wanted to confront him right away.
"Calm down Sugar Queen. If he punched Airhead here, he had a reason, and maybe we should find out what it was before we go crazy."
Of course, Katara went straight to the precinct to confront Lin about it.
"Let me guess, he came crying to his mommy. Maybe he got what he deserved."
"How can you say that? Kuzon broke his nose in three places."
"If someone threatened your family, what would you do about it?"
"What do you mean threatened?"
"He wanted Kuzon to skip town, leaving me behind. When he wouldn't go, he tried to blackmail him, and well Kuzon doesn't take well to threats, so he punched him. Tenzin can file assault charges if he wants, but I'm just going to arrest him for extortion in return. So he can either get over it or get locked up."
Of course, Tenzin denied committing any kind of extortion. His argument, although he didn't voice it, was that he didn't ask Kuzon for money or anything of value, so it wasn't extortion.
This turned into a he said she said battle and Toph had enough. "Let's just sort this out. If Tenzin tried to blackmail Kuzon, then he must have had something on him. Kuzon, what would Tenzin know that would give him any kind of ammunition on you?"
"He knows who my birth mother is. He put a tracer on my car and went out to her house."
"And this is a big deal why?"
"She may have an international warrant for her arrest."
"May?"
"I don't know if it's still active, but it's likely active."
"And what did he want in return for keeping quiet?"
"For me to skip town, leaving Lin and our twins behind."
"I believe him," Toph said.
"Just like that?" Katara hissed.
"It makes sense. It explains why he never told us who his mother is, why Lin's never told me even though she's met her twice. It's not like we would have told the papers, but us knowing inherently put his mother at risk."
"You think Tenzin left Pema at the hospital the day his daughter was born to blackmail Kuzon?" Katara questioned.
"Well Kuzon didn't come to the hospital, and it explains Tenzin's bullshit story about barfing the whole time. He left and came back. He made up the story to cover his absence and his broken nose."
Of course, everyone now wanted to know who his mother was. He said he'd tell them, "If you can get the Fire Lord here."
Katara could do that. She wrote to Zuko, explaining that Lin's child's father wanted an audience with him to settle a long-standing issue.
Curious about what issue he could have with this stranger, Zuko arranged to make a visit.
Two weeks later, they had Katara, Toph, Bumi, Kya, Tenzin, Lin, Kuzon and the Fire Lord himself all in a room.
"So why do you need me here?" Zuko questioned.
"My mother has been hiding for a long time," Kuzon told him. "She did a lot of bad things, I know that, but she was the best mother that she could have been to me and my sister. It's been almost sixty years. I want to be able to put my family back together again, but I can't do it without you."
"Why me?"
"Well, you're the only one who can pardon her, and you're my uncle."
"What?" Katara said to him.
Zuko took a closer look at the man in front of him. "You're Azula's son."
"Yes. Before my adopted mother changed my name to Kuzon, well for obvious reasons, she named me Azulon. She still calls me that."
Zuko was baffled. "She's alive?"
"Yeah. She's quite a spitfire still."
"Damn. I assumed she got lost in that valley and never came out. Well, if I couldn't catch her after 58 years, I may as well let it go at this point."
Zuko wrote out a pardon for her. "It won't be good until I file the copy at the courthouse, but you can take this to her. She won't believe you otherwise."
He handed Kuzon the scroll. "Thank you."
"Wait a minute?" Toph questioned. "If Azula's your mother, then who's your father."
"Um, maybe she should be the one to tell you that. I don't want to be caught in the middle, especially when I think you all know my twin sister, who probably doesn't know she's my sister."
"Who raised you?" Katara questioned.
"Ty Lee."
"That's where she went!" Zuko remarked. "She just wandered away to United Republic one day without telling anyone why she was moving."
"Well," Kuzon made a blue flame. "When she saw this, she knew she had to hide me, so we moved away."
"How did no one find you before?" Toph questioned. She could feel the blue flame, even though she couldn't see it.
"I always turn it down, and I used to keep my hair buzzed. If anyone was suspicious, then they didn't say anything to me about it. I actually thought my advertising job would make it too obvious, but no one thought about it until now."
"Well I'll be damned," Zuko said. "Your mother must have taught you how to lie."
"She did. I'll never be as good as she is. She didn't want to tell me who my father was when I was a child, so she convinced me it was the avatar."
"WHAT?" Katara yelled.
"Don't worry. She told me the truth eventually."
"I want to hear this story," Toph said, "even if it is a lie."
Kuzon told them the sordid tale his mother had told him about how Katara had gotten angry and locked him out, so he got drunk and Azula ran into him at a bar. "She said she seduced him, so he wouldn't arrest her, and then she was pregnant so she stayed hidden until I was born and gave me to Ty Lee."
"Why would she do that?"
"What make up a story? I think she missed my father more than she wanted to admit at the time. I was 10 when she told me the truth about him and I was 13 when she told me I had a twin sister."
Of course, everyone wanted to know who Azula's baby daddy had been.
Katara gave her son a stern lecture on tying to scare off Kuzon. "It's not his fault his mother is a raving psychopath."
"I know." He was pretty ashamed of the whole thing.