Chapter 2

Leo yawned and opened his eyes. He rubbed the sleep from his eyes. Then he remembered. He bolted out of his room and down to the kitchen. The wall was how it had always been, solid.

Had he dreamed up Cassi? Yes, he decided. Master Splinter wouldn't hide a sister if they had one. Even if they did have a hidden sister, how would she know about them? How would she know their names? She wouldn't. If Master Splinter hid her from them, he would hide them from her.

"I had this weird dream. I dreamed we, like, had a sister!" Leo turned around to see Mikey coming out of his room. A moment later Don and Raph joined them.

"I dreamed that too!" exclaimed Raph.

"How could we all have the same dream?" Don pondered.

"Morning guys!" Came a voice from the door. The boys whirled around.

"Cassi?" they chorused.

"You were supposed to be a dream." Mike whined.

"Do dreams pay for pizza?" asked Cassi holding up a pizza box.

A short while later, the boys started asking Cassi questions while they ate. Don started.

"Cassi, where were we last night?"

"We were in my lair. It's like yours, except I'm the only one who lives there."

"What do you use all the rooms for? Cosmetics?" asked Mikey.

Cassi smiled. "Yes and no Mike. I do have a room for cosmetics, but I have other uses for the other rooms. I have a science lab, a training room, music studio; the list goes on and on."

"When we were at the old place, where did you live?" Raph asked.

"I lived where we were last night."

"You didn't mind when we moved in?" asked Leo.

"No," replied Cassi, "Actually, when I heard what had happened, I persuaded Splinter to let you guys move in to the empty part." She paused. "Mikey, I may have forgotten to mention that I can read minds. Don't ever call me 'babe' or 'chick' again!"

Mikey yelped. The others gave him an odd look.

"How did you know our names? Didn't Master Splinter try to keep us a secret too?" Don asked.

"He tried to, but I found out about you. In fact, I've been with you guys on some of your 'adventures'. I'll see you guys later." She stood up and headed into her lair smiling secretly to herself.

"She can read minds? Why I am I the only one that is surprised by that?" Mike asked.

"Right now Mikey, nothing could surprise us." Leo replied.

----

Later on, Cassi spent time getting to know each of the boys individually. She started with Mikey.

"Thanks again for the pizza, Cassi."

"Don't mention it."

"Cassi, where exactly are we going?" he asked looking around. Cassi was leading Mike up and down the sewer passages. He had never been this way before. Cassi seemed to be eyeing the walls very carefully. It was like she was watching for something.

"I heard you tell the others that you had always wanted to go surfing."

He shrugged. "Yeah, so…?"

Cassi stopped walking. She pushed an oddly shaped rock. A small speaker popped out beside it. She stepped up to it.

"Cassiopeia." She said into it.

A mechanical arm holding a surfboard shot out. The surfboard was black with 'Cassiopeia' printed in magenta graffiti letters. She took it and turned to Mikey.

"Your turn." She said brightly.

Mike gave her an odd look and stepped up. "Michelangelo?" he said uncertain. Again the mechanical arm came out holding a black surfboard. This time it had 'Michelangelo' printed on it in Orange flames. "Wow!" he gasped in awe.

Cassi stepped on a stone and waves began to form in the water. The water level began to rise. She laughed when she saw the look on his face.

"Don't worry its filtered river water." She said as she went in and hopped on her board. Mike followed.

----

Raph pulled out his Sai blades and began twirling them. He grinned smugly at Cassi.

"Ya say that you're our sis, so let's see if you're real turtle material."

"Bring it on Raphael!"

The two of them were standing in Cassi's training room. Her training room was padded, so they couldn't get too hurt if they fell.

Cassi pulled out her sword and leapt into the air. Before Raph had a chance to react, she kicked a Sai from his hand. It landed a small ways off, but before he could get it, it seemed to sink into the ground.

"One of my inventions," Cassi explained, "You won't get it back until we're done."

"Nice job." He commented.

She lowered her sword. "Thanks!"

"Never let down ya guard!" Raph headed for her.

"Who let down their guard?" Cassi replied as she knocked the other Sai from his hands. It too sunk into the floor. Raph tried to attack her again, but she flipped over him.

"Raph, I'd like you to meet someone." She grinned.

"What?" He asked. She got behind him once more.

"Wall, Raph. Raph, wall!" She blasted him with a beam of electricity and sent him flying into the wall. Cassi purposely aimed at his shell so he wouldn't be hurt.

She retrieved his Sai blades and tossed them to him.

"Turtle enough for you?" she asked with a grin.

"This is only round one Cassi." He threatened. Cassi just laughed.

-----

"What're you doing, Don?" Cassi asked as she watched him secure one of the TVs. to his worktable.

"Fixing the television. Raph threw his Sai through it," Don sighed, "again." Cassi eyed the Sai that was wedged in the TV.

"Raph just had both his Sais a few minutes ago." She said puzzled. Don gripped the Sai and tried to yank it out. He had no luck.

"He's got a couple backup blades." Don explained as he tried again to pull it out. Still, the blade was stubborn.

It was obvious the blade wasn't going to come free with only Don pulling it. Cassi grabbed the edges of Don's shell and pulled. The sai's grip on the TVs grip was strong, but Don and Cassi were stronger. The Sai suddenly popped out sending Cassi and Don flying back into the wall. The sai went through Cassi's bandana pinning her to the wall. Just then, Raph walked in.

"I see you met my friend the wall." He said sarcastically.

"Yeah, yeah." Cassi replied, gently trying to pry the sai from her bandana and the wall. "Beat it Raph." She warned.

"Why should I?"

Cassi pulled the sai out. Then she flung it at Raph. He didn't have time to duck. The sai stuck into the wall just above his head.

"Good reason." He commented pulling out his sai. Then he left.

Cassi turned and looked at Don. He looked like he was in shock. Cassi had actually managed to scare Raph off!

"Come on," she laughed," let's get this TV fixed. We can work better in my lab. All the parts we need are there too."

-----

A while later, the boys were all watching TV. Cassi was hooking up the one that she and Don had fixed. Mikey was flipping rapidly through the channels. He stopped on the missing persons report. They watched it for a moment while Cassi adjusted the monitor.

A light came on in Mike's head.

"Shouldn't we be looking for Splinter?"

Cassi's head jerked up. A look of panic washed over her. She raced out of the room into her lair without a word.

"What'd I say?" asked Mikey.