A/N: I was having trouble thinking of special qualities for Sasuke's Moon Cutter, other than being a thicker bladed katana. I had thought of giving it the ability to infuse elemental properties easily, but I decided I didn't want use the same idea from another one of my stories, even if I limited it to only one or two elements. But after some thinking, I finally came up with a good ability.

Black Coat and Octomammoth

Patria: "Someone clearly had typical overprotective father syndrome."

Sora: "As a father myself, I can understand Tellah's concerns. But I would've gotten to know guy before making that kind of judgement."

Patria: "Yeah sure."

Kairi: "You were very fond of Rydia, weren't you?"

Sasuke: "Well considering she reminded me of you, it was hard not to be. I should probably visit the Land of Twin Moons sometime soon. It has been a long time."

Pith: "I think it's awesome how you first met Mom and Grandpa Kaname."

Sora: "Yeah, and it seems like quite a lucky coincidence that your master happened to be your father's pupil."

Sasuke: "In my experience, there's a fine line between coincidence and fate."

We had reached a open clearing of the waterway. It was a large grassy field in the middle of the mountains. Tellah told us that once we enter the cavern beyond this valley, the Octomammoth will be nearby.

However, when found the second entrance, we had an unexpected encounter. There was a mysterious figure standing at the entrance with its back turned to us. The figure looked like it was wearing a black coat, that didn't really look like it belonged in this world, really suspicious. I had the ominous feeling about this person. Something told me this person was trouble.

"Hey, you in the coat!" Tellah barked, "What's your business here?" I guess I wasn't the only one who found the figure suspicious.

The figure turned toward us. It's face was shrouded in that hood, and I couldn't make it out. The figure then let out a chuckle, masculine from the sound of the voice, so I assumed it was a man. "Well, well." He said in a cocky tone. "What do we have here? An old coot, an tiny lass, a teenaged boy, and a knight of darkness. You look like quite an interesting bunch."

"Who are you? And what are you doing here?" demanded Cecil.

"What am I doing here?" the man repeated. "I'm looking for some...entertainment. What kind of things on this world could I stir up?" That last statement made be wonder if he too was from another world, like me. "Say! Maybe you lot could entertain me for a bit. I could use someone to test out our new lackeys."

He then snapped his fingers and suddenly we found ourselves surrounded by strange creatures. The were pale white humanoids of two different varieties. One was relatively my size, awfully skinny, and their limbs look unreal, not even a single hand. The other kind was small and lying flat on the ground on their stomachs, it actually looked like they had feet were their hands should be. They were pretty creepy. I took note of a strange symbol on the skinny ones' heads, it looked like an upside down heart with a few large spikes. I looked at the others in my group, they looked clueless.

"What kind of demons are these?" demanded Tellah.

"I'm glad you asked," said the hooded man. "These are what my boss calls Nobodies. A bunch of empty husks without hearts of their own. You may not believe me but I'm actually kinda one of them, just without the white deformity."

"Your boss? One of them?" I asked sternly. "Who are you? Who are you working for?"

"Wouldn't you like to know?" the man chuckled. "Now then, let's see what these Nobodies can do!"

The moment he wave his hand toward us, the monsters attacked. One of the skinnier ones, which I would later learn are called Dusks, leapt into air a started floating towards me in a slithering snake-like movement. I swung Moon Cutter at it. I didn't expect it to maneuver above me and whip its limbs at me. I quickly spun around and swiped slashed the Nobody in half, watching it disintegrate into white particles.

I then saw two of the smaller ones, that I'd later learn are called Creepers, seem to turn their 'front legs' into wings and flew above me. I was flabbergasted when those thing suddenly stretched themselves into elongated shape and then zipped down toward me like spears. I was fortunate enough to back away quickly enough for them to miss by mere inches. Wasting no time, I sliced one of them in two, destroying it. The other one then shape shifted into sword-like form and slashed at me. I defended with sword, locking blades with it. I decided to take the opportunity to finally try out a special ability of Moon Cutter. I focused my energy onto the blade, and it emitted a red glow, indicating it was absorbing the force the Creeper was using on me. I then took a step forward and shouted, "Counter Cutter!" as I tore right through the sword-shaped Nobody, utterly destroying it.

I then heard Rydia scream. I look to my left and saw that a Dusk had wrapped itself around her, binding her arms and squeezing her tight. I ran over to her, cutting down any Nobody that got in my way. Once I reached the young summoner, I grabbed hold of the Dusk's head and beheaded it, causing the rest of it to disintegrate, freeing Rydia.

She fell to her knees in relief as I asked, "Are you alright?"

The girl panted a little before looking at me and saying, "Y-yes. Th-thank you." But then something seem to have caught her attention as the point her rod over my shoulder and shouted, "Blizzard!" and I cold air fly past my shoulder. I looked behind me and saw a frozen Dusk on the ground. Apparently, this Dusk was trying to sneak behind me until Rydia caught it with her spell.

I stabbed my sword into the frozen creature, finishing it off, before looking back at her with a smile and patted her on the head. "Nice save, Rydia." I noticed her blushing when I said that. Perhaps she's not use to praise, I thought.

I then looked around to see that Cecil had just unleashed a wave of darkness, destroying multiple Nobodies. I also saw Tellah cast a fire spell, burning several other Nobodies. Rydia had clutched my arm in fright when Tellah casted that spell. I had a feeling she didn't like fire.

But despite our efforts to take them down, more just kept coming. I looked over at the black coated man, who was just standing there in the distance watching. I had a thought that if we took down the leader, they would stop. I dashed at the black coated man, striking down Nobody in my way. I managed to reach him and I swung my sword at him. However I hit nothing but air as the man vanished before my eyes. I looked left and right look ing for him.

"I see," I heard his voice coming from above. I looked up and was startled at what I saw. The man was standing...in mdair...upside down. I even notice his coat wasn't even riding up. What's up with this guy? I thought. It's like he's defying gravity or something. I was brought out of my train of thought when he spoke again. "I remember you now. You're the pupil of that goodie two-shoes Kaname, aren't you?"

That statement made me freeze in place. "Y-you," I stammered. "You knew Master Kaname?"

The figure chuckled, "What a weird coincidence running into you here. How did you get onto this world? Did you come here by choice, or by pure luck?" He laugh again, his tone sounded like he was treating this like some kind of joke. "Things just got interesting around here."

This man was making my blood boil. As if his cockiness didn't irritate me enough. The fact that he knew Master Kaname, and from that 'goodie two-shoes' comment wasn't exactly friends with him, and knew that I was his apprentice, it was clear he's been to my home world, Radiant Garden, maybe even lived there. Now that I thought about it, his voice sounded vaguely familiar, but I couldn't place it. I wondered if this man knew about what happened that fateful night. And from his demeanor, I wondered if he even played a part in it. With that in mind, my anger grew.

"Who are you?!" I shouted at him, as I began charging energy into my sword for another technique Master Kaname taught me. "Tell me already!"

"As if," he replied.

I then growled as I swung my sword, "Sonic Wave!" and a wave of energy launched from the blade. However, the man vanish again before the wave could hit him.

I look around for him until I spotted him standing on the ground again. "I'd love to stay and play a little longer, but I'm afraid I have too much work to do at the moment. Maybe next time."

"Don't walk away from me!" I yelled.

"Be a good boy now!" he smugly waved his hand as swirling clouds of darkness gathered around him and he vanish again.

I knelt down and punch on the ground in frustration.

"Sasuke!" I heard Rydia call. I looked over to see her and the others running up to me. They had just finished take out the rest of those Nobodies. "Are you okay?" she ask worriedly.

"I'm fine," I answered as I stood up.

"Where did that man in the black coat go?" asked Cecil.

I looked down in shame and said, "I'm sorry. I let him get away."

"It's okay, Sasuke," the dark knight assured me. "We had no way of knowing what he was capable of."

"That man was definitely not human," stated Tellah. "He had a similar aura as those monsters he sent on us. I don't think he was kidding when he said he was one of them. What disturbs me is that I've never seen their likes before in my life."

"Neither have I," replied Cecil.

"But I doubt we've seen the last of them," I added.

"Something tells me they were not of this world," the sage said. "We'll have to be more careful, incase we encounter them again. We'll take a short break after that little scuffle. We wouldn't want to be too tired when we confront the Octomammoth."

And so we took a short break. Tellah spent it teaching Rydia a few of the magic spells he remembers. Apparently he had forgotten most of the spells he knew due to his old age. Sometimes a spell he had forgotten will come out when he needs it, but then it just as quickly escapes him afterward.

I spent the break practicing my sword swings while Cecil observed. I still couldn't get that black coated man out of my mind. Too many questions about him lingered that it really bothered me. I needed to know what he knew. But also I knew that if I were to face him again, I needed to get stronger.

My train of thought was broken when Cecil asked me, "Say Sasuke, you said before that your sword is one of a kind. Can I ask how that is?"

I stopped as I looked at the sword in thought. You see, my father, Yamato Kazekiri, wasn't just a great swordsman, he was also an expert blacksmith. And this sword, Moon Cutter...was his creation. Master Kaname had given me this sword as a gift a few months ago. He had planned on giving it to me when I was older, but decided to do it early as thanks for my help when a certain...accident occurred involving his daughter, Kairi, but that's a story for later. I took a deep breath as I started to explain. "Well, for one thing being a katana, Moon Cutter has a unique cutting ability. With its curved blade and the two-handed handle, if wielded just right, a master of this kind of weapon can make a clean cut through many materials easily. This sword has a thicker blade than usual, trading speed for force."

"I also sense there's some kind of magic infused in that sword of yours." said Tellah while Rydia was practicing the Thunder spell.

I nodded in response. "Its actually infused with two types of magic. One protects it from wear, tear, and rust. This sword never needs to be honed, nor can it break. But there's another sword I know of that has that magic. What really makes Moon Cutter special is the magic that gives it what my master once dubbed the Counter Cutter ability."

"Counter Cutter?" asked Cecil.

"I hadn't quite got a chance to try it out until we fought those...Nobodies, but if I focus my energy into the blade as it's hit by another's attack, it can absorb some of the force of the attack and store it for a short period of time, and if I react quickly enough, I can use that force to strengthen my next attack. In other words, Moon Cutter is perfect for parry-and-counterattack strategies."

"Could it absorb magic attacks as well?" asked Tellah as he stroked his beard in thought.

I scratched my head in thought for a second. "That I don't know. I'm not sure that's ever been tried."

"How did you come across a sword like that?" asked Cecil.

I looked down and said, "It was my father's." They didn't question any further.

I then looked down to my left and saw Whyt staring at me. Ah yes, I had forgotten to mention that little marshmallow creature. He's pretty much the only thing from Feymarch, the land of the Eidolons, that Rydia is capable of summoning right now. Whyt is what's called a whytkin. Apparently, they're like the 'larval form'. Little pale white men with marshmallow shape heads and faces that almost look like they were drawn on the head. Whyt in particular was also wearing a red bow tie on his neck. They are pretty friendly creatures and, dare I say it, kind of adorable. But they also train themselves to gather new individual abilities until they evolve into powerful Eidolons. Though there are some that choose to remain whytkins for the purpose of making more 'baby Eidolons'. Whyt was not much of a fighter, and Rydia only summoned him to play with him, like her own personal pet. I've noticed the little guy seemed to like to stare at me with curiosity for some reason. I kinda wondered why, but I didn't ask. Of course the fact that he spoke in a language I couldn't understand didn't help much. I often wondered what he was saying to Rydia, as she's the only one who understood him.

I knelt down to Whyt and petted his squishy head, which made the little guy giggle. He then ran over to Rydia, who had stopped practicing her spells and was sitting in the grass, and jumped on her lap, which she responded by cuddling him.

"Alright," Tellah spoke, "Break time's over. We must continue to Damcyan Castle."

And so we continued through the caverns. Tellah had us slide down a waterfall in order to save time, which wasn't exactly fun. We walked through ankle deep water until we came across the bottom of another waterfall.

"The exit to this cave is just behind that waterfall," said Tellah. "But stay sharp. The Octomammoth is lurking in the deep end of this water bed. If we approach the waterfall slowly, we may be able to sneak passed it. But I wouldn't get my hopes up. Use caution everyone."

We slowly and careful walked around the shallow end of the pool toward the waterfall, Tellah leading the way, followed by Cecil, then me and Rydia. All the while, I was getting an ominous feeling. My sixth sense was telling me danger was near. I had a feeling the monster knew we were here.

Suddenly, I heard Rydia scream from behind me. I looked and saw that a large orange tentacle with blue stripes had constricted around the girl and lifted her off the ground.

"Rydia!" I shouted.

"Help me!" Rydia screamed.

"Rydia! Hang on!" I heard Cecil shout.

I wasted no time and charged my energy into my sword. I yelled, "Sonic Wave!" and launched a wave of energy at the tentacle, creating a gash on it but didn't cut all the way through. I still needed to work on the techniques power. But it was enough to make the appendage flinch and loosen its grip on Rydia, dropping her. I quickly sheathed my sword and dove toward her, catching her bridal style. I then got up and leapt away with her as another tentacle almost grabbed us.

As I set her down, the rest of the monster's tentacles sprung from the water, all eight of them now visible. Then it cone shaped head emerged, with its scary white eyes and sharp toothy grin. I was not a pleasant sight.

"Octomammoth!" shouted Tellah. "It won't let us pass now! We've got to fight!" He then raised his staff and called, "Thunder!" and a bolt of lightning crashed down on the monster's head.

The giant octopus screeched in pain but it seemed to only make it mad. It lashed a tentacle at Tellah, only for Cecil to slice the appendage off before it could hit him. Cecil then charged his sword with darkness, "Dark Wave!" and he unleashed a wave of darkness on the Octomammoth. It let out another screech of pain.

"Thunder!" I heard Rydia shout as another lightning bolt shocked the monster.

A tentacle then faced Rydia and started to come crashing on her. Thinking fast, ran in between the appendage and Rydia and swung my sword to intercept attack. I swung while focusing my energy into the sword just as a precaution in case I wasn't strong enough the cut the tentacle in one swing. The second the tentacle collided with my sword, it absorbed the force from the appendage. I knew I couldn't hold it for long so decided to just release it, shouting, "Counter Cutter!" as I cut right through the appendage.

The Octomammoth was then hit by a couple more thunder spells and two more tentacles were sliced off by Cecil's dark sword. That was four down, four to go. However, the monster seemed really agitated now.

"Be careful!" shout Tellah. "A wounded beast is very dangerous! It'll come at us more ferociously now!"

"We'll need to distract it somehow," said Cecil.

"I can help with that!" declared Rydia as she knelt on the ground and began waving her hands. "Cockatrice!" she shouted as a flock of bird-like creatures materialized above her. The cockatrices flew toward the Octomammoth, and one by one they attacked its face, pecking it with their beaks or scratching it with their talons. The beast started trying to wack them, but they were moving through the air so swiftly that it was hard to catch them. It was working, the beast was distracted.

I turned to Rydia with a smile and said, "Nice one, Rydia!"

Despite the dimness of the cave, I notice there was a small blush on her cheeks after I said that. Definitely, not use to praise, I thought. She look at me and said, "Th-Thank you, Sasuke."

"Okay everyone," Cecil took command. "Let's hit it hard, and take it down fast!" He then raised his arms and spread them outward and he shouted, "Darkness!" and a dark aura surrounded him. "Let's go!"

I looked to the sage and noticed he had two finger on his forehead and seemed to be contentrating on something. Perhaps he's trying to recall one of the spells he had forgotten.

I looked back at the monster, as I saw that Cecil already made his move, cutting another tentacle. Rydia then casted another thunder spell, after making her birds disperse from the monster.

I then charged forward, and pointed my sword at the sixth tentacle. "Breakthrough!" I thrusted my sword through the appendage before ripping the flesh open to the side and then chopping the rest of the appendage off.

"Get back!" I heard Tellah shout. Cecil and I wasted no time in leaping back. He then called, "Thundaga!" and a more intense bolt of lightning struck the Octomammoth. The monster screeched in agony.

"It's working!" said Cecil. "Keep it up!" He then launched another Dark Wave attack while I simultaneously launched another Sonic Wave. The another screech later and suddenly I find myself wrapped by the waste by one of the two remaining tentacles. I shouted as I was lift into the air above the monster, who looked hungry.

"Sasuke!" I heard Rydia call worriedly as I struggled to get lose.

"Hold on!" Cecil shouted as he ran toward be, slicing the other tentacle as it got is his way.

"Sasuke, raise your sword and focus you energy!" Tellah commanded. I didn't know what he was planning at first but I didn't have time to question it as I did as I was told. I saw Tellah raise his staff and called, "Thunder!" and in that moment I felt a little jolt coming from my sword. It was clear to me that Tellah had casted thunder on my sword to test if it could absorb magic. It seemed to be working as the blade was glowing a green light and was electrically charged.

In that moment, Cecil had cut off the last appendage that was holding me. As I fell toward the giant octopus's head, I wasted no time taking my electrical sword and plunging it onto the top of it's head. I could feel the monster trembling from the electricity. Then for good measure, Cecil charged his sword with darkness and shouted, "Soul Eater!" as he stabbed it into the beast's left eye and followed up with an extra surge of dark energy from his left palm into the right eye. The monster let out a blood curdling scream that soon turned into a crackling groan. Cecil and I leapt back as we all watch the beast sink motionlessly into the water. The Octomammoth was dead.

We all took a minute to catch our breaths. Me especially, kneeling on one knee. The first big monster I had to help take down. My time in this world was just becoming full of firsts. I felt something grab onto my left arm, which startled me at first, but I relaxed when I saw that it was just Rydia, clutching me in fright. I sheathed my sword and stroked my right hand through her hair to comfort her.

"You alright, Sasuke," Cecil asked me.

"Yeah," I answered. "I've just never taken on anything that big before."

"Well, experience makes you stronger, right?"

"Yeah, it does."

After a moment, Tellah said, "Alright, we must hurry, once we exit this cave, it'll be a straight shot to Damcyan Castle."

With that we exited the Underground Waterway.

A/N: I thought that in order to make this story a little more interesting, I had to include a member of Organization XIII on here as a thorn on my OC's side. I'm not really planning on him joining the villains of this world, he's more of a nuisance who feels a need to stick his nose into Sasuke's business. You'll be seeing more of him later, and each encounter will get more and more personal for the young swordsman. I should also note that this was around the time the organization was just founded, so at the moment they have only a few members, specifically No. 1-6. So, can you guess which member is in this story?

The event that rewarded Sasuke his sword will be explained in a later chapter when I feel it's more appropriate. I'm sure Kris may be able to guess what I'm talking about though.

For those of you who don't know, Whyt is a summon that's exclusive to the DS version of FF4. I haven't played that version myself, so I can't efficiently gauge his usefulness in battle, but I thought it would be a nice touch to include him. Just don't expect him to show up very often.

Just to be clear, the 'Soul Eater' Cecil used has nothing to do with Riku's dark sword, but rather it's a move Cecil can use in the fighting game, Dissidia Final Fantasy. You'll be seeing more of those later.

On a side note, is anyone else excited that it has just been announced that Kingdom Hearts III will feature a world based on the recent Disney film, Big Hero 6?