Disclaimer: I don't own Ninjago, if I did, the characters wouldn't have been completely screwed up after the movie for "commodity of new fans". And I most certainly don't make any money out of this.
Also, UN-BETA'D. I read it over twice, but I apologize if I left in any mistakes.

THIRD PERSON POV

Clouse finished drawing the circle on the floor, and stepped back, admiring his work. A five-pointed star, with a few runes in it, surrounded by a perfect circle, all drawn in white chalk. He then proceeded to turn off all lights in the room, and light the five candles on the design, each on one point of the star. He picked up the old, leather-bound book from the floor and opened it to the marked page. He then started chanting out loud the latin words in the book, and watched in amazement as black smoke started to swirl in the middle of the circle.
Then the smoke started to gain shape, as Clouse kept chanting the verses. An aura of dark power slowly started emanating from inside the circle, shaking the mage up to his core. This was an otherwordly power that shouldn't be messed with.

The smoke had now concentrated right in the middle, and it had somewhat gained shape. A humanoid face, with a pair of horns sprouting from the sides, and the nose and mouth blended together, barely discernible, with its eyes were closed. It had huge bat-like wings sprouting from its back, two arms, and each finger ending in huge claws. The skin had prominently marked veins and was covered in a slimy black goo, and everything below the torso was still too smoky to be able to see well, though something like a tail with spikes was discernible.

Clouse blinked rapidly, trying to get his eyes to focus better on the figure, but it was still too fuzzy due to the smoke. He finished incantating the last few verses, and shut the book.
The eyes of the figure suddenly snapped open, revealing two glowing red orbs. Its mouth spread into a feral grin, and Clouse had a very hard time remaining standing where he was, and not fleeing to the other side of the world. The presence it emanated chilled him to the very bones. Fear unlike anything he'd ever felt before made him shudder, as the creature roared, a sound capable of tearing whole mountains apart, if the bearer wished so. And it was then that the mage understood that he had messed with somethingthat was better left untouched. But of course, he now had to face the consequences.

"Who dares summon me?" it spoke directly into Clouse's mind, not emitting another sound.

"I am Clouse, Master of Dark Magic" he answered.

"And why did thee interrupt mine deep slumber?" it grumbled.

"I am requesting your aid, Asmodeus, King of Demons" he gave a slight bow of his head, in a somewhat sign of respect.
But the one in question didn't even bat an eyelash at the mention of his title.

"If thou know who I am, thee must knoweth the depth of mine powers, and what I can do"

"Yes, your Majesty. That is exactly why I called upon you and not another of your kind"

"Hmm..." the demon stayed silent for a few seconds, assessing the situation, "What dost thee request of myself?"

"You see, I was once a renowned mage, the object of legend in this country, which we nowadays call Ninjago. But this little group of kids playing to be heroes -the ninja, they are called-, defeated me and my master, humiliating us, and sending us to the realm of ghosts, where we would suffer for quite some time. Now that their own stupidity has set me free, I want my revenge" the bitterness in his words were quite obvious as he remembered all that had happened.

"Interesting, but someone driven by revenge is not unheard of. If I were to agree to help in thy little crusade, how would I benefit?"

"I can free you from your prison"

"How dost thee know I am not comfortable in my realm?"

"Because I read the lore. And according to the books, you were vanquished, which means you are there against your will. And I know that realm of yours in very unpleasant"

"Hmm... that is true. But what else can thee offer me?"

"Is freedom not enough?"

"No"

"I assumed you would say that. Well, after the ninja are gone, taking over this world will be quite easy. We could split it, and then you'd have your own kingdom again"

"Tempting, but what else?"

"What else?"

He had hoped that freedom and lands would be enough. The book didn't say anything about what would sway demons.

"I am freeing you of your prison, and giving you lands"

"Which I will be battling for, so I believe I am entitled to all of it"

"No. Remember that I am the one that holds the upper hand here"

"Dost thou really?"

Clouse thought about it for a second. The book said that inside the trap, the demon was powerless and wouldn't be able to come out. He preferred that it would be Asmodeus the one helping his cause, but he could always send him back to whatever hellish realm he came from and summon another, less powerful demon. The end goal was the same anyway, no matter the road.

"I'll free you, and your people. You'll have half of the country, and anything on it, including human souls for you to fester on. And as long as you don't interfere with my business, you can expand your lands and conquer new territories"

"And if we fail?"

"I am certain we will not. You are only a small portion of what I have planned"

"What. If. We. Fail?" the demon king said, enunciating clearly each word.

"I will use my dying breath to send you back to your realm, if you wish. Safe from harm's way"

"Not entirely pleasant, but I believe it will have to do. Anything else you require?" it answered in a mocking tone

"I think that covers it. I'll have the contract ready in a few days, and we'll be able to revise it together"

"Good"

"In the meantime, I'll free only two of yours so you can get to know this world better. Feel free to cause chaos. Moderate, though"

"Will thee not free me?"

"When the contract is signed, yes. I don't want you going back on your word. Demons are known for their wickedness, after all"

"Clever little mortal"

But not clever enough

"That is all then. I'll summon you when the binding is ready"

And with a snap of Clouse's fingers, the demon vanished, leaving the room eerily quiet. He realized that maybe he didn't have a reason to be so afraid after all. He was in control, and he would make sure that the ninja's downfall would be certain this time.
He would not fail.

Hello!
So, I posted this story on about three years ago. This is a rewrite. I hope you like it.
IMPORTANT: since I wrote this fic three years ago, the most recent season was the Morro one. And I don't really feel like adjusting everything for it to be up-to-date. So the djinn season happened, but none of them remember it happening. Everything that comes after never happened (Hans of Time, Sons of Garmadon and the movie). I'll start right when the cops are chasing them through Stiix (rewrite of start of djinn season), except they're being incriminated by another reason. And Cole is still a ghost.
The ninjas will act more like teens, not like children. They're gonna be 17 to 19 in my story. Which means there will be kisses and relationships, and a bit more mature scenes. Probably mild torturing. No lemons though. I'll change the rating if I write something too extreme. And, there will be lots of cursing.
And it's also been a really long time since I last watched the series, and it's probably gonna take me some time to rewatch it all, so I'm sorry if I don't remember much and get some facts wrong.
Review plz! I don't care if it's just "update soon!", I just wanna know if you liked it.
I'll shut up now. I'm sorry this AN was long, I just had to explain a few things.
Until next time!
-Emma