Ok, my first attempt at a Teen Titans story. This story is actually a present to a friend of mine called Wolf of The Darker Cloud, who herself writes amazing TT stories.

Which is why this one features her own character, Wolf, Raven's sister (only as a cameo).

Well, anyhow, hope you guys enjoy it!

Equal Opposites

First Encounter

We start by looking at space. A small galaxy slowly moves closer, closer until we're focused on one small blue and green planet next to a sun.
Moving downwards still, we see a city, and next to the city an island with a "T"-shaped building on it.
Heading towards the entrance we make our way up the stairs, past the wide living room with two heroes, Cyborg and Beast Boy, busy playing games.
As we leave we can hear them say:
"Hey, no fair! Who says you can do that!" - Beast Boy
"I do! and there's nothing you can do abo- Hey!" - Cyborg.
Their voices fade as we move down the hallway, past the exercise room in which the leader, Robin, can be seen excersing. "30... 31... 32..." we hear along with the clank of iron.
Continuing on we move past Starfire, cheerfully playing with her pet Silky as they head towards the kitchen.
Finally, we arrive at a closed door, and now... the story begins.

"Azarath..Metrion..Zinthos ... Azarath..Metrion..Zinthos"
Raven's forehead creased in aggravation. For the last half hour she had been trying to meditate, as she always did this time of day, but something was wrong, something that kept nagging at her, trying to get her attention anyway possible.
"But what?" she wondered.
"Something in the tower?" she did a quick scan. Nothing.
No, she realised, it wasn't something physical.
"Ok, let's try this one more time" she muttered.
Taking a deep breath, she closed her eyes and focused, repeating her mantra over and over, trying hard to find the inner peace she needed to figure out -
"That's it!" she gasped, her eyes popping open.
"Robin!"
"Huh? Raven?" The boy wonder glanced to his side as the dark girl materialised out of the floor. "Raven, what's wrong?"
"Robin, I did it. I finally figured it out! It's been staring me in the face all this time!"
"Woah, slow down" Robin said, holding up a hand.
"Now, deep breath, and tell me what's up"
"It's Terra" Robin said, smiling, "I know how to free her"

"...and that's how it's going to work" Cyborg said, patting a large oblong machine.
"Do you get it now BB?"
"Uh, yes?" Beast Boy grinned hopefully.
Everyone stared at him with arched eyebrows until he sagged and said "No"
Cyborg sighed. "Ok, one last time. Raven's found a spell that'll free Terra, but it's too powerful to use directly"
"But when I cast it through Cyborg's machine" Raven said, waving in it's direction.
"It'll diffuse it, making it safe enough not too kill her"
"Get it?" Cyborg asked.
"Uh..."
"I'm not going to explain it again!"
"Oh, I cannot wait to see friend Terra's smiling face again" Starfire said, clasping her hands together. "Tell, when shall we go down to free her?"
"There are still a few final items I need" Raven said, "But it won't take too long.
We should be ready to go at suns-" Her eyes widened and she spun around.
The other Titans stared at her as she scanned the large open window looking out at the sea and the city.
"Uh, Raven, is something wrong?" Robin asked.
"No, I just thought a saw something in the corner of my eye. Probably just a bird" she said, turning back to her friends. "I'd better get started on those items"
"Right. In the meantime we'll get ready for the trip down to the cave" Robin said.
As Raven left she heard Robin giving a few orders, his voice slowly fading away.
As she approached her room she stopped, closed her eyes and did a quick scan of the entire tower, trying to pinpoint the presence of the aura she had felt.
"What was that?" she wondered, "And why did it feel so... familiar?"

"So, are you really going to go through with this?" Wolf asked as Raven collected all the stuff she needed. "Yeah, of course" Raven said, putting everything in a satchel before placing it on her shoulder. "Why?" Raven asked, giving her sister a questioning look.
"Oh, I don't know, maybe because it might get in the way of your love with Beast Boy?
No, let me rephrase that: Will get in the way"
"What are you talking about?" Raven asked, acting innocent while blushing slightly.
Damn she's good...
"Oh come on, you know I'm too good to fall for that act" Wolf said, floating closer.
"I just want to be sure you're not going to get hurt"
"What he doesn't know can't hurt me" Raven said, unable to look her sister in the eye.
"Besides, Terra's the right girl for him, you know how they are"
"Ok, if you're sure" Wolf said, floating away.
"But I still think you're making a mistake. If it was me it grab BB by the a-"
"Bye Wolf!"
Wolf grinned and vanished.
Raven sighed. Sometimes having a ghost sister could be such a hassle.

Sunset, and down in a volcanic cavern the Teen Titans stood and stared at the statue of their friend, still frozen in stone and time.
Behind them came a series of metallic clicks, a snapping of struts being opened, a clack of connecting servos, and then Cyborg said "All ready over here"
Robin, Starfire and Beast Boy turned around to find Cyborg standing next to the cannon shaped machine, now glowing with life and purpose.
A few feet behind him Raven sat in a meditative pose, chanting under her breath as she mixed herbs and elements together.
"Finished" she said, as the bowl in front of her gave of a small explosion and started glittering. She scooped up a small amount between her hands and floated towards the group. As she came closer she heard Beast Boy say "I can't wait to see Terra alive again. Oh, this is going to be the best day of my live!"
Raven felt a sadness in her heart, but didn't let her face betray her.
"All set Raven?" Robin asked.
She nodded. "Then good luck" he said, and moved back.
Raven stood at the open end of the machine, staring up at the statue of Terra.
"Welcome back Terra" she thought, and closed her eyes.
"Azarath... Mentrion... Zinthos!" she started to chant, a glowing black energy sphere around her hands. "Refero Vita Potior Haec Spiritus Enrito!"
The dark magic flared, and with a soft roar the dust flew into the machine, which went from a dull humm to a high pitched whine before expelling a massive large cloud of glittering particles.
Suddenly a wave of white energy with a dark edge arced down and slapped away the magical glittering particles.
"What?" Raven gasped, shock coursing through her system.
A figure came floating down, hovering next to the Terra statue.
It was definitely a girl, her tight uniform leaving no doubt to that.
Her uniform was white with a black line running up the one side.
A white robe, similar to Raven's covered her shoulders and masked her face.
From inside the shadow of her hood two dark blue eyes gazed at them with a smile underneath them.
Time seemed to slow down to Raven as the stranger lifted an arm, touched Terra and making a coat of white energy run over her, her outlines in black.
With a bow the girl wrapped her cape about her and vanished in flash of white.
And then Terra's statue cracked and crumbled to pieces.

Ok, it'll be continued soon again.

Just a little note:

the spell Raven casts, translated, means:

"Bring back life to this spirit entrapped"