Prologue

There were very few things in the multiverse that tried the patience of Glossaryck. In fact, he quietly considered that his schtick- aloof, wise teacher who knew more than he said and only in riddles when he did? It was pretty much him and he had it nailed.

But every so often he would come across someone else who was just a little too much like him. He didn't like mirrors being held up to himself.

Whenever he did find one of these people, most of the time he would just try to avoid them. Simple as. The sands of time caught up with so many of them, so why frustrate himself with them? It would just be wasted time. Why even bother?

Unfortunately though, the Weaver was one of these people and unlike the rest, she was going nowhere.

Agitation circled around in Glossaryck's head as he walked down the dust heavy corridor towards the Weaver's chamber. Only younger than him only by just short of a billion years, she was still one of the oldest beings in the universe and the pompous bag acted like it. For any gracious act she bestowed on you, it was as if she expected you to prostrate before her in thanks for her generous nature.

Her sole redeeming feature was that she preferred to keep herself to herself most of the time, which suited him just fine. He could go millions of years without seeing her and somethings, pleasantly, he might even forget she exists.

So why he suddenly received a message from her, requesting that he come visit her at once, both confused and irritated the old genie.

It had been an inconvenience getting here, to say the least. He'd been in the Dimension of Buried Beasts-enjoying a form of work holiday while the immense, strange beasts had stopped in their furious dance of destruction and were now napping under the earth-when the half-dead courier had found him.

With one well-worded but ultimately unclear letter, everything was cut short. His departure insulted the local monarch they'd been dealing with (a war might have started because of it, but he'd left before he could find out. Eh, Rhombulus could sort it out) and had to catch a dozen portals across the same number of dimensions in order to reach the one place in the multiverse he didn't want to be.

Even as he stood in that dusty hall of the Bureaucracy of Magic knocking on the door to the Weaver's chamber, he was still considered just walking away. Maybe go get some pudding at the canteen instead.

"Enter," said an airy, refined voice from within before he could follow through on that thought.

Glossaryck stepped inside and immediately regretted it. The entire room was only dimly lit by a couple of lanterns despite the walls being lined with them. Instead they, as well as most of the room, were covered in strings. Every surface, every hook and crook, everything you could wrap a piece of string around, they were there; stretched across from high lanterns to around a cupboard leg. An intricate web of them throughout the room that was both impressive and irritating. On the floor, a vast carpet of them created low mounds which any normal person could sink into but Glossaryck could get lost in. In all, tens of thousands, possibly hundreds of thousands of strings covered the room, individually fragile but altogether they were an impenetrable wall.

And at the centre of it all, finger poised poignantly on her bottom lip, was the Weaver staring off into the distance. Intellectual, graceful… and a pain in his backside!

Hiking his robes up dangerously high, Glossaryck picked his way through the tangle. His small size actually worked to his advantage since he didn't immediately sink into the piled-up wool (even if it would only take one trip up and he was done for). Still, he made far quicker than other larger individuals could.

"If you are going to be inviting people back to your chambers now, Katie, the least you can do is tidy up beforehand." Glossaryck had to unhook his foot from a particularly affectionate pair of strings as he said this.

The Weaver at last broke her ponderous mien. Eight eyes, two like his own frame by six more in a far too literal "eye brow", glared venomously at him. She didn't like that he still used that name. Too normal she claimed, even though she was the original.

"My map changed for no one, Glossaryck," she said, finality in her tone.

Ah yes, her infamous map of Fates. The overwhelming project of her life; trying to gleam the threads of fate and mapping them to an incredibly simplified map. All so that she could kinda foresee the future. And by, all rights, it worked! More than one multiverse spanning crisis had been… well, anticipated if not predicted. Still, the Magical High Commission always had a place to start. It all would actually quite commendable if she hadn't such a chip on her shoulder about it. It was unbearable how much she accredited to herself.

"Well if you haven't invited me here for chips and dip, why do want my company?" he asked, earning another glare. This wasn't a threat to all dimensions. Those warnings were done with more flamboyance; processions, music and a bill to a choreographer as she entered the meeting chamber while the rest of the Magical High Commission waits for her. This was different.

She didn't respond immediately, instead turning back to her previous focus. Following her gaze Glossaryck finally took notice of a mass of threads, coming from all corners of the room, but now bundled together into a single great rope. A conjunction of fate. It wasn't the only one in the room, or even the largest of them, but it was the one she deemed to warrant attention.

"Oh dear, impatient Glossaryck, I am trying to explain to you. This." She said it as if that single word would explain everything. "It's has been building for a while. I have to admit, it was a subtle change. A couple strings here and there, not enough at once to be noticeable, but often enough for me to realise I was returning time and again.

"And guess where it is, Glossaryck."

He didn't need to guess. It was he that had been called here; it could only be one place.

Which made it all the harder to believe.

"You do realise," he began, "That Mewni is winding down from a war, rather than building up to one. As we speak, the Butterfly and Pigeon Kingdoms are talking peace treaties; the Butterflies will get to some trade agreements and the Pigeons won't be buried in the rubble of their own castle. Normal things."

Then he raised eyebrow, giving her a quizing look. "Are you sure you're not losing your touch, Katie? You never used to mistake the past for the future. Could it be that you're just stressed out? Need a holiday?"

The Weaver chuckled softly. "Mock all you like, Glossaryck. I do not read the fate wrong. This is coming, The fact that you came running the moment I called you is proof enough of your fate in me. And proof enough of your fondness for this little world."

Then reaching out, she caressed the bundle almost lovingly. "Mewni has been your pet project for the last few thousand years. Anyone would feel anxious when Fate puts such attention on their… I suppose the only word I can use is 'home.'"

By corn, why hadn't he just gone for that pudding? "Katie, we will both live incredibly long lives, but we'll live happier lives if you get this over with. You have a point to get to, and it's not that I have my fondnesses."

The Weaver smiled, savouring his impatience. "Of course, you came here so I could grace you with me wisdom, so I shall. Now, the bundle you see before you is mostly Mewmen and it's conflict in at its heart. There is about to be a great upheaval there, very soon. Bigger than the so-called Great War they're wrapping up now. Much bigger. So big that the end isn't even in view yet, not from where we're standing for all my skills. But there are still a few interesting things to see. Go on, look closer. See what holds the bundle together."

He did. To his surprise, rather than being woven in itself, the entire bundle was only held together by three thread. Two yellow and one grey. Each woven around and around the rest, crossing each other and pinning the rest the web they created.

"Caught between three powerful threads."

For three powerful people. Glossaryck stroked his beard. This didn't bode well; if his amateur divination skill were worth anything and the Weaver prediction was right, there may well be another massive war coming. A battle of wills. He could guess who the grey thread represented, but the other two…

"From Earth," the Weaver suddenly cut in, as if reading his mind, "Whatever sparks this conflict will come from there."

Earth. Magicless, but they had made up for by becoming masters of engineering. Sure, they took an age to get anything sort of project up and running, but once it was they could even outstrip magic in sheer scale.

"Hm… And just who are they?" he had to ask. He had a theory. No-, not even that. A suspicion, but one which would make sense of a few mysteries which had been hanging over them these past few years. He was doubly pleased when the Weaver had to shrug.

"That I cannot say. Fate can only be read with magic. And Earth is place dead of it, as you must know."

Glossaryck paused a moment to chew this information over. It was all very vague, really. Vague, vague, vague, from beginning to end. What did they really know? There would be another civil war and two foreigners would cause it? Hardly universe ending stuff. Not really worth Commission attention; they didn't deliberate in the squabbles of petty kingdoms. In fact…

"And why tell me this? What's the point of letting me know when I can't do anything about it."

Glossaryck was reminded why he truly hated her when she pull the lips back into the most horrible, wordless smile.

She was telling him this because she knew! Mewni was no longer considered his world, he'd lost that privilege when he'd been run out with the change of regime. Interfering now in the runnings of a free dimension, would bring the a hundred and one different troubles down on his head. She was telling him because his hands were tied.

In that moment, Glossaryck wanted to tear down her precious map. He might have even felt a spark of actual hatred. Then it passed. Instead he committed his focus to the two yellow threads... if they were who he thought they could be, he might not even be needed and it would be better that way. All he'd need to do would be keep an eye on proceedings. Wait and watch. He could do that, coming to him as easy as being an obtuse jerk.

Turning back to the door, he hesitated and looked back at the Weaver. "Thank you for letting me know about this, Weaver. I… appreciate it." He started with the intent for it to sound sardonic, but somehow it came out genuine. Heh. That struck a blow to his pride, especially as Weaver smiled at him.

"Of course, Glossaryck. I am always happy to help when you need it."

Glossaryck returned his own confident smile, and he was glad to see the Weaver's falter. "More than you know, Katie. More than you know."

With that Glossaryck bowed and then began the irritating process of picking his way through the web to the door, leaving the Weaver to wonder how her chance at gloating had gone so wrong. To her, it looked like Mewni was about to enter a time of darkness, one which might destroy all he knew. But, if he was right and those threads were who he believed them to be, Mewni might just be on the right path for the first time in decades.

After all this, it was time to get that pudding.

So this will be a rather unique AU, which started as a conceptual crossover with another Disney series, W.I.T.C.H. Star vs was to be the base, while tone and some plotting would be pulled from W.I.T.C.H. I'm going to try and avoid retelling episodes of either however, as I feel people (read "me") can only read so many slight variations of the canon episodes so many times.

The other odd thing about this story will be Jackie's promotion to lead role. I always loved her base starting point in the series and was disappointed that she was never fleshed out beyond it. So if her presence will cause you consternation, please feel free to step of the boat now. Thank you.

We'll see how this goes. Oh, and OCs will be few and far between, the Weaver only exists because needs someone as irritatingly smug as Glossaryck. Even a second appearance from her is a low priority.

Hope you enjoy this journey folks.