Authors notes: Greetings fellow creatives, a new crossover story is born, just like to clear up quick, this crossover between She-Ra and the Princesses of Power and Ben 10 features the classic Ben 10 we all know and love. This was a crossover I've been meaning to do for sometime now, it was originally going to be a crossover between Sonic and She-Ra however, after watching the whole series of the She-Ra reboot it occurred to me that Ben 10 would work better. All the characters are the same with some minor alterations and references to the current Ben 10 series.

The time frame starts at Season 1 of Princesses of Power before the episode the sea gate and a year after the finale of Ben 10 Omniverse. Now shall we begin.

One discalimer I do not own either Ben 10 or She-ra this is just for fun!

Ben 10 (c) Cartoon Network

She-Ra and the Princesses of Power (c) Dreamworks animation.


:Just another normal day:

The town of Bellwood located somewhere in America highly regarded as the most normal city in the world, but nothing in this city is normal. In the city stood a smoothy shop named Mr. Smoothies and sitting at a table was a teenage boy with a black sports jersey with a green stripe running down it with the number 10 stamped in the middle and wore brown pants with green and white shoes, he had peach coloured skin brown hair and green eyes and on his wrist was a strange looking watch device in green and white with a strange hourglass symbol.

His companion at the table was a taller looking alien creature with blue and white fur with black streaks across his head and surrounding his eyes which were yellow and brown. He wore blue and black coloured armour and carried a strange looking weapon with an hourglass symbol attached to it.

This was Ben Tennyson bearer of the Omnitrix and his partner Magister Rook Blonko who were enjoying some smoothies.

At 10 years old during a summer road trip with his Grandpa Max cousin Gwen Tennyson, Ben had discovered an alien device known as the omnitrix a device that allowed him to walk a mile in the footsteps of other alien then he's used it to help people and faced unforgiving foes and sometimes had gotten over confident in its use and has saved the universe countless times. Finding out his Grandpa Max was an agent of the Plumbers an intergalactic law enforcement organisation he has followed in his footsteps and is an agent himself to be later partnered up with Rook Blonko who under Ben's 'guidance' has become quite the hero too.

However all in Bellwood was quiet no crime no alien attacks no nothing In a way everything was…

"Boring!" Ben breathed after sipping his smoothie.

"I must admit everything in Bellwood has been quiet recently." Rook admitted. "Crime is at its lowest and theres not much activity in Undertown either."

"Yeah Rook thanks for voicing the obvious." Ben said still ever bored.

It had been a year since Ben and Rook had defeated the threat of Maltruant a Chronosapian who had gone rouge with every intention of flinging time and space into utter chaos. He was defeated and scattered into pieces as was meant to be courtesy of Professor Paradox. A new universe was created and Ben with Rook, his friend Kevin Levin and his cousin Gwen or as she prefers Gwendolyn had spent the summer exploring this new universe and have defeated new foes and saved countless now all was quiet and peaceful.

"I mean as much as I enjoy some down time a guy reaches his limits, I want something new something exciting to liven things up." Ben complained.

"Ben I know it has been awhile since we have faced threats like Dr Animo or even Vilgax, but shouldn't we be careful not to push anything?" Rook asked.

"I know I know never a good idea to tempt fate but I just wish something would happen a bank heist, Psyphon's goons causing trouble in Undertown anything." Ben said.

Then as if on cue a beeping noise was coming from the Omnitrix it glowed green and Ben could see someone was calling him.

"Grandpa Max?" Ben answered. "Ben I need you and Rook back at Plumber Headquarters now, somethings come up." Max relayed.

"Finally some action!" Ben said "We're on our way now Magister Tennyson." Rook then said.

Ben and Rook stood up from their table then almost in the blink of an eye a light surrounded them and they disappeared.


Plumber HQ: Earths Orbit:

They reappear aboard the Plumber Headquarters high in Earths orbit. It used to be located underneath Max's Plumbing but after a confrontation with Rooks former teacher turned terrorist Kundo it was relocated into space. However Ben suggested it should stay there as they now had a functioning teleport and it hasn't moved since.

Ben and Rook arrived at the main deck of the base where they found Max Tennyson who was sporting a red and orange Hawaiian shirt with white pants and black shoes. Standing with Magister Patelliday a fish looking alien with glasses on his nose and wore a white and black plumber armour suit.

"Hey Grandpa." Ben greeted. "Hello Ben I hope you've not been enjoying too much of your down time." Max asked.

"No not really just itching for something to happen." Ben said.

"But you don't seem to be scratching yourself?" Rook asked not understanding what Ben meant.

"Rook its an expression." Ben explained. "Ah I see." Rook understood.

"Well be careful what you wish for." Max said. "Show them."

Patelliday then pulled up on the screen a scan of a galaxy far far away from earth. Just then Blukic and Driba two of the Plumbers top technicians (supposedly)

"Over the past several weeks scans have been picking up strange anomaly's in space time energy." Max said to the two plumbers/heroes.

"Thats never good." Ben said given when something messes with the fabric of space and time it can get messy.

"Have any plumbers been dispatched to investigate?" Rook asked.

"Well thats where things get complicated see." Patelliday explained. "The sector of space where the anomaly's were detected is an uncharted region of space a sort of forgotten zone really."

"Never heard of it?" Ben questioned. "So how come no Plumbers have been stationed there?"

"Because when we sent a small team in, they disappeared never returned." Max pointed out.

"Whys that?" Ben asked. "We don't know, but whatever it was it was of great concern to even the Magistrata so she ordered that sector of space a no fly zone."

"And since then its secrets remain a mystery." Driba pointed out. "Yah the biggest mystery of them all." Blukic added.

"However given these recent anomalies the Magistrata has ordered this to be investigated with a two man team, to find the source of the anomalies and stop it should it pose a threat." Patelliday explained.

"I assume myself and Ben are that two man team?" Rook asked.

"Yes Rook." Max said who was looking rather worried himself. "But I'll be honest with you both I don't like the idea of sending you into unknown territory and unknown threats that maybe out there."

"Well it hasn't stopped us before and we've seen things through okay." Ben pointed out.

"Ben this is serious" Max said. "We're completely in the dark about whats out there."

"I know Grandpa Max, but if what you're saying is true this could be a big threat to the universe we can't just let it happen." Ben then said in a serious tone.

"Bens right Magister as agents of the Plumbers we're duty bound to investigate."Rook agreed with his partner.

Max took a moment to think and he knew they were right if this was a potential threat they couldn't just ignore it and so he looked to his grandson and his partner.

"Your right, but you'll be on your own since we have no plumber satellites in the area you'll be out of communication range." Max explained.

"Not necessarily." Driba said as his lab partner pulled out what looked like a modified transponder from a space craft.

"We've been working on a means to expand the communication radius on the Plumber space craft this transponder should help in terms of communication ." Driba explained.

"Should?" Ben questioned as did Rook with a rather questioning look given Blukic and Dribas history of making things that nearly, almost maybe worked, they weren't as clever as another Galvan who created a certain watch that Ben carries now.

"Maybe." Blukic added much to his lab partners glare.

"Well nothings ever easy, we'll be careful." Ben said. "When do we leave?" Rook asked.

"Immediately" Max answered. "But be careful no one knows who or what you'll find out there, good luck."


Soon Ben and Rook were aboard their mode of transportation, the Prototruck which also doubled as a space ship to travel the stars. They departed from the base and entered a warp portal which would take them to where they needed to go. They flew through a glowing tunnel of energy and after some flying time they emerged in what was known to the Plumbers as the Forgotten Zone of space.

They were greeted by a glowing purple nebular with thousands potentially millions of stars.

"Now theres a sight and no mistake." Ben said in awe.

"Indeed, we better start our investigation." Rook agreed and began flying through the unknown sector of space.


2 hours later (Earth time)

The Prototruck continued to fly through space passing unknown planets and star clusters. They even passed an asteroid cluster. Inside the truck Rook was scanning the area for any signs of the anomalies. On the dashboard was a photo of a girl with tanned skin dark hair and reddish brown eyes it was of Bens Girlfriend Kai Green.

Ben was staring out the window until his partner got his attention

"Okay sector delta seven clear." Rook said. "So far no sign of the anomalies that Magister Tennyson warned us about."

"Man this is just like fishing in a desert." Ben doubted as they hadn't found anything.

"But how do you fish in a desert?" Rook asked. Ben answered looking at his partner with a raised eyebrow and a questionable look.

"Ah another Earth Expression, of course." Rook understood. "Well somethings giving off these anomalies…"

"So we keep looking." Ben answered.

Just then a communication sounded off from the radio. It was Max Tennyson. "Ben how's it going?" Max called.

"We've been here for two hours Grandpa but so far no sign of any space time anomalies." Ben reported.

"Keep searching, and remember we don't know anything about that region of space or what to expect so be cautious and fall back should things go south." Max relayed.

"Come on Grandpa you know me." Ben said rather confidently. "I know thats why I said it." Max said causing Ben to frown as the communication ended.


3 hours later:

More time had passed and still nothing Ben was staring into space out of pure boredom whilst Rook kept searching the signals. However when Ben looked up they saw a rather beautiful sight. A purple shining nebula surrounded by countless stars and even some glimmers of glowing yellow sparkles.

"Despite the mission we are under taking it is rather beautiful." Rook observed. "Yeah I kinda wish Kai could see this." Ben agreed.

However all of a sudden the Prototrucks sensors were going crazy as they had detected something and it had similar signatures to the very thing they've been searching for.

"W, wait a moment Ben I've got a fix on the anomalies." Rook said locking in on the signature.

"But theres nothing out there, just the expanse of…" Ben was interrupted when he saw something happen before nebular in front of them began twisting and turning as if it was turning into something.

"…scratch that theres something happening." Ben breathed in surprise as his partner turned to see what was going on.

The space in front of them began turning into some kind of spiral and it had a dark hole deep in the middle of it and it seemed to be surging with energy.

"The sensors are picking up that its a…" Rook looked at the controls and saw the sensors were going crazy and looking at the readings Rook instantly knew what this was.

"Its a wormhole!" Rook exclaimed and suddenly the Prototruck began to move towards it. "Rook whats happening?!" Ben exclaimed. "We're caught in its gravity well!" Rook exclaimed.

"Get us out of here NOW!" Ben exclaimed.

Rook turned the wheel of the truck to turn the truck round and pushed the thrusters to full blasted into life as it tried to pull away from the gravity well, however they weren't getting away they were just going further in.

"We're being pulled in!" Rook exclaimed. "Pull out!" Ben exclaimed. "I'm trying!" his partner replied.

All of a sudden the rear thrusters on the wings and the behind overloaded and blew out. The truck was flung into the wormhole with the two Plumbers screaming and growling in an effort to handle the G-force they were being exposed to as they were spiralling out of control. They fell into the wormhole which sealed behind them.

The Proto-truck then emerged in a black void, it was rendered powerless, and inside Ben and Rook were knocked out. Ben slowly regained consciousness and looked to see his partner knocked out.

"Rook, Rook you alright?" Ben said nudging his partners shoulder and Rook slowly began to wake up.

"I, I'm alright partner." Rook said to which Ben smiled in relief.

"What just hit us?" Ben asked and Rook looked over the trucks console and tried to bring the power back online.

"Nothing, that wormhole must've knocked out the power, we need to restore it and…" "Uh Rook." Ben called as he turned his partners head around to face the window of the truck and the Ravonagander couldn't believe what he was seeing.

In front of them was a planet, a planet that looked almost like Earth, but it was surrounded by 12 moons all in different colours.

"Where did that Planet come from?" Rook asked. "I don't know but I defiantly don't remember it being there before." Ben said rather surprised. However they had bigger concerns, like how close they were getting to it.

"Uh why's it getting closer?" Ben asked. "Because we're caught in its gravity, we're going down!" Rook said and the Prototruck began free-falling towards the planet with great speed.


Far Below:

Down on the planet of Etheria stood the whispering woods an endless expanse of trees and mystery the ever changing landscape makes it difficult for wanderers to navigate. However deep within its trees concealed was the magical kingdom of Bright Moon a great curved shaped castle lay within a pool of water and standing before it was the great Moonstone.

Standing in one of the many windows of this great castle was the former Horde Soldier turned rebellion fighter Adora, who stood looking out on the landscape in front of her.

"Adora." Called a voice and Adora turned to see her two new friends and allies. The Princess of Bright Moon, Glimmer and the rebellions marksman Bow.

"Oh hey guys whats up?" Adora asked. "Well good news since we've recruited Princess Perfuma to the rebellion my moms considering my Princess recruitment mission to rebuild the old alliance!" Glimmer said rather eagerly.

"Wow thats great news, I guess what we did in Plumeria made a difference after all." Adora said amazed

Adora had been raised in the Fright zone home of the Evil Horde since she was a small baby. She had been raised to believe that the Princesses who protect this land were the ones destroying the planet. However upon the discovery of a mysterious sword in the Whispering woods she saw just what atrocities they had committed to countless villages and lives across the planet. She decided to turn from the Horde and join the Rebellion, though some people did not trust a former Horde solider who could very well be a spy, but after her recent actions she was beginning to feel more welcomed but it was a slow process she still had a long way to go. Glimmer had decided to try and rebuild the Princess Alliance that stood against the Horde long ago and had just recruited Princess Perfuma of Plumeria after saving their land from pollution caused by the Horde and giving them the courage to stand up and fight for their beliefs.

"Yeah and it was all because of you Adora," Bow said "you and She-Ra."

Adora smiled at that thought and looked to the sword she carried on her back and saw her reflection and that of another side of her. However she also saw something else too.

"Guys look!" she said as she turned around and saw what looked like a fire ball falling from the sky above Etheria.

"Whoa a shooting star!" Bow said amazed. "But there are no stars in the sky?" Glimmer questioned.


Said burning star was the Proto Truck which was burning up upon entering the Etherian atmosphere. Rook struggled to hold the course of the truck.

"The landing jets are offline I can't level out!" Rook exclaimed.

"Okay thats it open the rear doors!" Ben said as he uncoupled his seatbelt and headed for the rear of the ship.

"What are you doing?!" Rook exclaimed. "Giving you some landing jets!" Ben replied

The rear doors of the ship opened and Ben reached for the Omnitrix and dialled in an alien.

"Come on give me something good!" Ben hoped. and slammed down on the faceplate as he jumped from the ship he transformed his body became encased in red coloured rocks which then exploded to reveal a being made of fire with the omnitrix logo in the middle of his chest. This was an old school favourite Heatblast.

"Heatblast?" He said. "This'll work!" Heatblast threw his hands down and let loose a fire blast that propelled him underneath the ship.

He let loose duel torrents of flame to try and level out the Prototruck. Heatblast growled with effort. It was working the Prototruck began levelling out and Rook was able to gain control of the descent as the flames from reentry died down.

Heatblast exerted the last of his strength levelling out the craft and eventually he lost his grip and fell towards the tree canopy Rook saw this from the cockpit.

"BEN!" Rook exclaimed as he saw his partner fall into the canopy.

Heatblast crashed through the canopy and then hit the ground knocking him unconscious. He blacked out just as he heard the sound of the Prototruck crashing down.


Moments later:

"Ben, Ben!" Called a voice and soon Ben came around to see a blurry vision of Rook standing above him. He looked at himself to see he had reverted back to human form, given he could only maintain his transformations for a period of approximately 10 minutes.

"Rook." Ben groaned as he tried to stand up. "Uhh did you get the number of that burning disaster." He tried cracking a joke.

"Glad to see you're okay partner." Rook smiled but then looked behind him. "Just wish I could say the same about my truck."

They headed for the crash site and found the Proto truck was wrecked its left wing was completely shattered, the boosters fried, and many other components were beyond repair.

"Ah man, I thinks she's down for the count this time partner." Ben said.

"I fear you maybe right, still as you humans say any landing you can walk away from is a good one." Rook agreed. He then pulled out his plumbers badge and activated its communication systems.

"This is Magister Rook Blonko calling Plumber HQ, please come in." He said however he only got static.

Ben then tried using his badge to call out as well. "This is Ben Tennyson to any plumbers on this frequency, Grandpa are you there?" He tried however he got the same thing.

"Nothing, the coms must be out of range." Ben guessed. "I do not believe so, the badges are equipped with the long range transponders and they seem to be functioning perfectly." Rook said inspecting his badge for faults.

"Okay so, we've lost our ride, we're on a planet that wasn't here before and we can't call HQ for back up." Ben listed.

"Yes but theres more." Rook said looking over his Proto scanner. "According to our coordinates we're in the exact same place where that worm hole opened." This all but confused Ben how could they be in the same area of space? However he looked up and noticed something.

"Hey, where are the stars?" Ben asked. Rook looked up and saw there were no stars in the sky whatsoever even for an alien planet there should be some stars around it no matter what time of day.

"There are no stars in the sky, now thats weird." Ben mused.

"Indeed,but I'm afraid we have a more pressing concern such as our currant whereabouts." Rook observed.

The two looked around them and saw they were in the middle of a forest with strangely shaped trees. They didn't know where they were let alone how to get back home. So they began exploring the undergrowth of the forest and could see the tallness of the trees and how the landscape seemed to be ever moving. Ben even saw a few boulders as they went along. However he kept seeing the exact same shaped boulder.

"Rook we're going in circles!" Ben finally admitted. "I've seen that same boulder five times!" He pointed to said boulder.

"Thats not the same boulder, I believe the forest is getting to you." Rook just shrugged. To respond Ben picked up a sharp rock and scratched a cross into it.

"Okay we go past a boulder with this mark then we are going in circles." Ben challenged.

So they moved forward into the undergrowth. Rook began using his Proto tool blade mode to slice through the leaves and bushes. Eventually they reached what looked like a boulder but sadly it was the one that the Omnitrix bearer had marked earlier.

"Okay I believe we are going in circles." Rook finally admitted. "but still this forest doesn't seem natural."

"Man it's like this whole forest is against us!" Ben shouted. Suddenly Rook covered Bens mouth and he just pushed him off.

"Dude what…" "Ben shh!" Rook interrupted him. "Listen."

Ben listened and could faintly make out what sounded like whispering voices in the very undergrowth of the forest it started to creep the two of them out. What was more alarming was how it looked like the landscape was moving and changing around them almost as if it was alive.

"Okay we need to get out of here!" Ben said, suddenly Rook noticed something in the undergrowth almost as if the trees had moved to reveal it.

"Whats that over there?" Rook pointed as they moved in that same direction.


A distance behind them at the crash site Adora, Bow and Glimmer emerged into the forest as the princess had teleported them there.

"Hey look." She pointed and everyone looked to see the destroyed ship.

"Uh thats no shooting star." Bow noticed and Adora moved over to take a closer look.

"No it's a ship." Adora said looking at the design.

"Did it come from the Fright Zone?" Glimmer asked.

"Doubt it, this isn't like any other Horde ship I've seen before the colour schemes off and it looks too advanced." Adora analysed.

"She's right and it didn't come from the Fright Zone it came from the sky almost like it fell from it." Bow said then noticed something on the ground.

"Over here." He called as Adora and Glimmer came over.

"Foot prints." Glimmer said. "So there were people on board this thing?"

"By the look of them they're five minutes old, which means they just left." Adora said. "Come on." She then gestured to follow the tracks.

"Whoa whoa time out guys I mean what if the Horde's changed the look of their ships and these could be a couple of Hordesman?" Bow wondered.

"Or they could be people who are wounded and need help." Adora disagreed.

"Yeah and if they are Horde Soldiers we'll catch them by surprise." Glimmer added and so the best friend squad headed deeper into the forest following the tracks.

However little did they know they were being watched, something moved in the shadows unseen, a creature of black smoke with a red eye.


Far away in the darkest corners of Etheria, lay the Fright Zone, a place of machines and twisted futuristic buildings and deep within it someone watched through a viewing pool of water and smoke, a mage clad in a red robe wearing a red mask with a jewel in the forehead watched the events unfold. The viewing glass showed Adora and her friends following the tracks she swipes over the waters to then show the Omnitrix bearer and his companion.

"Hmm interesting, this boy may bring a seed of great trouble to the Horde." Shadow Weaver mused.


Back in the Whispering Woods:

Ben and Rook pushed through the canopy and soon found themselves at what looked like the crumbled remains of an old looking castle. The two looked in awe as they had never seen anything like this before.

"What is this place?" Ben questioned. Rook moved to inspect the structure, he looked closely at some of the markings.

"It's its some kind of old ruin." Rook guessed. "But I don't recognise any of these markings, it almost looks like an advanced form of alien tech."

Ben came over and noticed the almost alien looking language at the base of the structure it looked like lines and dots joined together. Ben tried using his Plumbers badges universal translator to translate it but it wouldn't.

"Okay thats weird?" Ben questioned. "What is it?" Rook asked. "Our badges are supposed to translate any alien language but, it can't translate this." Ben gestured to the writing. He then tried something else.

"Omnitrix scan and translate." Ben said as he held the Omnitrix close to the runes. "Scanning." The device said in a monotone voice and a green light emerged from the face plate and scanned the ruins.

"Cannot translate language not compatible." The Omnitrix said.

"Okay thats new?" Ben wondered. "The watch is supposed to know all life forms in the universe but why not this writing?"

"Hey over here I heard voices."

Ben and Rook heard a voice coming from the concealed trees. Rook pulled out his Proto tool and transformed it into a tonfa, whilst Ben readied the Omnitrix. The two looked and saw three kids no older than Ben himself emerge into the clearing only for them to stop and look wide eyed at the two strangers.

They all looked at each other and readied themselves thinking they were either allied with someone else or were a potential threat. Glimmer readied her powers, Adora drew her sword of Protection and Bow readied his bow and arrows.

"Who are you two? Horde Spies?" Glimmer demanded.

"Horde what?" Ben wondered, Rook just raised his hand as he lowered his Proto tool.

"Please we are not looking for a fight, we come in peace." Rook tried showing he wasn't a threat.

"Glimmer hold on, I don't think they're with the Horde." Adora wondered as she eyed the two strangers as Bow kept his bow and arrows ready.

"What makes you so sure?" Glimmer questioned still a little unconvinced.

"That one doesn't look like a Horde Soldier" She gestured to the boy and saw his attire wasn't like anything the Horde would wear. "and I've never seen Hordesman wear armour that advanced." Adora observed seeing the armour the blue coloured person wore and it looked to advanced for the Horde.

Glimmer began to see Adora's point but still wondered who they were and what they were doing in this forest.

"Who are you?" Glimmer asked and Ben just looked surprised.

"Who am.. wait you haven't heard of me?" Ben questioned. "I'm Ben Tennyson!"

The three just looked at the stranger with blank looks not knowing what he was talking about.

"Ben 10, bearer of the Omnitrix, saviour of the galaxy?" Ben pitched. "Any of those ring a bell?"

However the three just shook their heads not understanding the situation. Rook then took over.

"As he said his name is Ben Tennyson, and I am Magister Rook Blonko, we're deputised agents of the Plumbers." Rook explained.

"So what you clean toilets?" Adora wondered.

"No not those plumbers." Ben said. "The Plumbers they're an intergalactic law enforcement organisation."

"That mean anything to you Adora?" Glimmer asked. "No never heard of any plumbers like that in the Horde." Adora mused.

"You keep saying the Horde, but what exactly is it?" Rook questioned.

"Wait you've never heard of the Horde?" Adora questioned.

Ben could see they were questioning in circles they hadn't heard of him or the plumbers and he had never heard of who they are or this Horde. He guessed they must be in an alternate dimension.

"Okay look we don't know what you're talking about and you clearly don't know what we're talking about," Ben then said. "We're willing to explain everything, that is if your willing to listen?"

Rook could see this was a wise move. Glimmer, Bow and Adora looked at each other, and thought the same thing, these guys didn't sound or look like Horde soldiers. Plus if they were they would have attacked them by now. Adora nodded and she lowered her sword and likewise Bow lowered his weapons. Glimmer was a little hesitant but knew they needed answers.

"Okay, we'll listen to what you have to say." Glimmer decided.

"Good, cause it's a pretty long story." Ben explained.


Authors notes: So Ben and Rook have meet the Best Friend Squad, what will happen next and what adventures and trials may lie ahead for our young heroes, the next chapter is still introducing the story before we move into the canon episodes of Season 1 of She-Ra and the Princesses of Power.

Until the next chapter for the Honour of Greyskull!