"Where did they go?" Dende asked when the defenders of Earth reappeared on his lookout after Goku's instant transmission.

After Piccolo explained the conversation between Cosmos and the mysterious man, Dende nodded and looked up into space. "I see."

"Well, where are they?" Vegeta demanded.

Dende walked to a pool of water and muttered a few words before touching it lightly with one hand. As the ripples in the water died out, movement could be seen in the pool.

The warriors crowded around the pool to watch the scene.

"They're in space!" Goku exclaimed.

"She's in a dress!" Goten added.

"Shut-up, idiots!" Vegeta ground out before turning to Dende. "Where the hell is the sound?"

"It should be on about... now," Dende replied as voices were suddenly heard in the air around the warriors and they settled down to watch.

"...highness," the man said as he gave a courtly bow.

Cosmos sighed. "What do you want?"

"You're expecting me to say you, or your crystal, or your death," the man replied. "I just want something interesting to do. Hoping someone, somewhere can be good enough to defeat me. Then, I heard about Earth and the warriors that guard it. Most of them can destroy planets by themselves. Finally, a challenge!" The man sneered. "Bah! They're nothing. Relying on brute force and power. Easily conquered. I was going to just destroy this dirt ball. Then, I discovered that Cosmos lived on Earth. You, little princess, are the challenge I've been looking for. So, come on, try and defeat me."

Cosmos sighed and shook her head.

"Fine," the man growled out before pointing a finger at Earth, which slowly revolved around them A dark glow surrounded his hand and lightening flashed in the glow.

"No!" Cosmos shouted before flashing in front of the blast he sent toward Earth. She was able to hold the ball of energy before her cupped hands as it slowly dissipated. "You just pissed me off."

Cosmos's dress faded out and in its place were knee high white boots, and a fuku of pure white, with rainbow accents on the front of the short skirt. In one gloved hand she held a tall staff. On her forehead was an eight-pointed star surrounding her upturned crescent moon.

"Nice outfit," the man leered.

"Dead Scream," Cosmos whispered in reply, and a ball of dark pink energy formed on the tip of her staff before flying towards the man.

Slightly surprised, he didn't dodge in timed to avoid the blast. The Dead Scream hit him square in the chest, causing him to fly backwards from the force of the blast. "That actually hurt!" he exclaimed in surprise.

"World Shaking," was Cosmos's only reply, her arm driving below her as if she was punching downward. An orange ball of energy zigzagged toward her opponent, but this time he was able to dodge it.

Throwing his hand behind him, the man made a motion as if throwing a ball and a sphere of black energy rushed towards Cosmos.

=====

"How the hell are they able to do that?!" the older Trunks asked. "That much power being flung around should at least be showing up on our ki senses."

"They're not using ki, kid," Piccolo replied.

"WHAT?!" multiple voices yelled.

=====

The two warriors had been battling for hours and were now having a staring contest.

"You're not quite as strong as I thought, Serenity," Cosmos's opponent stated.

"My name is Cosmos," Cosmos replied coldly. "Nothing more, nothing less."

"You are Serenity, Sailor of the Cosmos, Neo-Queen of the Solar System, Bearer of the Ginzuishou," the man replied with a sneer.

"I... AM... COSMOS!" Cosmos screamed, a silver aura surrounding her. "Cosmos Elimination!"

The man stood, motionless in shock, as a silver beam of light shot out of the crescent moon on her forehead and hit him. After a moment of excruciating pain, he turned to dust.

Slumping down, Cosmos panted as she floated in place, resting.

After a few moments, she stood back up and teleported to Dende's Lookout. Closing her eyes, she concentrated and her sailor fuku disappeared, leaving behind the jeans and t-shirt she had been wearing earlier.

"You're situation has been taken care of, Dende-san," Cosmos stated before doing a double take because her voice had not only come from her voice, but from all around her.

"Sorry," Dende said before releasing the spell on the pool of water. "Thank you, Cosmos-san."

"Now what?" Goten asked.

"Now, I find out what I wanted to know earlier," Cosmos replied. "Tell me, Dende-san, why are there two Trunks in this time period?"

Dende nodded. "The older Trunks is from what was a possible future. He came back in time to warn the planet of the Androids. After their and Cell's defeat, he tried to return home. However, since it was a possible future, he could not, as that timeline no longer exists."

"He should've faded out of existence when the timeline that he belonged to was destroyed," Cosmos pointed out.

"How would you know that?" Vegeta demanded to know.

"I have prior experience with that phenomenon," Cosmos replied, a sad look in her eyes.

Dende continued his conversation. "I don't know how he still exists, but since he does, he now makes his home here."

"Very well," Cosmos replied before turning away from the group.

"Where are you going?" Goku asked.

"I'm going to finish chopping my wood," Cosmos replied, nodding. "Good-bye."

With that, she disappeared in a silver flash.

"I want some answers, Dende," Vegeta commanded.

"I have none to give that you haven't seen already, Vegeta. But, I'd advise you to leave Cosmos-sama alone," Dende replied before walking into his palace."

--

Before I get anyone telling me I used attacks and powers that never showed up in the SM or DBZ worlds, I made those ones up. I mean, why not? She's Cosmos. She's got this super-duper, ultra-powerful crystal, plus all the power that comes from being the defender of the universe. Sooner or later, she'd learn new stuff!