A/N: Welcome to this week's installment of S.I.N.! I'm inching my way closer to the end, and I'm having issues with a term paper for English, like I have to do one.

Ivy: Would you just shut up about the term paper?

Beastfire: Hey! You try keeping a good grade in an Honors class!

Ivy: Let's just get on with the story.

Meanwhile, at the Sun Riders' new home (which happened to be an abandoned zoo…don't ask), Sprx and Otto found the tenants, devising a plan to destroy the Hyperforce.

"First," began Quazar, their leader, "we destroy the Super Robot. Then, destroy those monkeys one by one."

"We should get rid of the red and green ones first," Aurora 6 put in.

"Yeah," agreed Johnny Sunspot, the one kid of the three. "They're the last ones they'd expect us to take down."

"Ahem," Sprx said, slightly annoyed. "We're right here, y'know."

The Sun Riders whipped around. This was unbelievable! These two knew the plans. 'There goes THAT plan down the toilet,' they all thought simutaneously.

"What do YOU want," Quazar asked, voice oozing with contempt.

"Uh, have you seen Chiro lately," asked Otto.

"No," snapped Aurora 6.

"But when we meet again, I'll beat the crap outta him," Johnny shouted quite dramatically.

Sprx turned to Otto and whispered, "Okay. They don't know anything…literally."

The monkeys backed off cautiously as the boy continued his rant.

Senya, Ivy, and Nova were back to the search. They came to a bridge and were about to cross when the bridge was blocked by a giant kitten.

"Let us through," Nova told it.

"Are you kiddin'," asked the kitten. "This is MY bridge! YOU ain't gettin' through!"

"Please," Senya asked, overcome by its kitteny cuteness. She'd always loved kittens.

"No!"

"Why not?"

"Because I'd like you to meet my giant Hairball of Fun."

Senya, Ivy, and Nova looked at each other and said, in the aforementioned order:

"Hairball"

"Of"

"Fun?"

To prove his point, the kitten coughed up a hairball the size of a minivan. The girls dove out of the way as it flew at them. The kitten laughed as the hairball came back at them. This pattern continued until the hairball stopped and the kitten got bored and laughed.

Nova looked around and saw that Senya was just fine. Ivy, however, wasn't as far as they knew.

"So," joked Senya. "Where's our resident hairball?"

She was answered by a flame coming from the hairball. This was followed exploding, due to Ivy's powers. Then, Ivy began hacking and coughing until a hairball flew out.

"Dude," she began. "I think I'm gonna be coughin' up hairballs for a week."

Here ends Chapter 4. In 5, Antauri and Gibson interrogate Mandarin, Nova looks for some food, and Ivy and Senya take on an affront to the color purple. Doesn't that sound fun!