It was during her studies that she had first broached the subject. The waves of magical objects. During her time at Celestia's Gifted Unicorn School, Twilight had learned from her magic lessons that magical artefacts were recognizable by the imprint and waves emitted by each magical object, an indescribable but recognizable sensation that every unicorn who had ever come close to a magical object knew.

Years later, after the great battle against Queen Chrysalis, Lord Tirek and Cozy Glow, Twilight began to think again about magical objects and their waves, particularly because of the Grogar Bell.

In truth, she wanted to deepen her knowledge in these fields so as not to be caught out again by misused magical objects, especially by Equestria's enemies.

She had heard of a book that had a peculiarity: when you wrote in it, the words magically appeared in another identical book. Other magical objects in Equestria also possessed this kind of capacity in other areas.
For example a magic stool in a pub in Manehattan which, when sat on, teleported you to another stool in the cellar of a bar in Canterlot.
Following this discovery, the pony who discovered it went back from Canterlot to Manehattan, taking the stool with him as he didn't understand that he had to sit down to go the other way, and today the two stools are next to each other and have no real use.

Using her knowledge, Twilight had designed a magic-wave device that would enable her to locate magical objects. She was more of a theoretical than a practical person, but she didn't take fright and set to work.

After months of research, she finally put together a kind of prototype, essential knowledge and experience of magical objects. She was well aware that she couldn't undertake everything on her own, several times withdrawing them to the assistance of Spike and faithful pupil Starlight Glimmer.
They both wondered about Twilight Sparkle's new hobby, but as good friends they were happy to help.

After that, it took a few more months to build the prototype. The thing now, according to the theory, was to calibrate it with the various magical artefacts in Twilight's possession, notably at the School of Friendship. The various historic relics belonging to the different creatures who frequented the school.

"Have you finished?"

"No, not really, but it might work. Could you fetch me a cup of tea from the kitchen?" replied Twilight.

"A cup of tea?" surprised Spike.

"Yes, because Trixie turned most kitchen utensils into teacups for spellcasting practice, so we've got quite a few.

"Ah... yes, I remember, but I don't see the point" Spike was confused.

"Well, Spike, although they're teacups, they were created by magic, which means they emit magical waves like any other magical object, so they're a good way of testing the device".

"Ah, I understand," said Spike, his eyes wide open. "And you want to use these teacups because if the waves are too powerful if they break it's not a problem, I get it"

"I didn't think it through that far" thought Twilight, a little annoyed with herself for not having had the idea.

"I'm going" shouted Spike as he left the map room, leaving Twilight and her machine alone.

A moment later Spike returned with a few cups of tea ' made by Trixie^TM '.

"Spike" asked Twilight "can you start the machine? thank you".

" Yes Twilight " replied Spike " let's get start the Twilightor Magic Waves Analyser 2000 "

"Very funny Spike" grumbled Twilight in a slightly annoyed tone.

The device started up, a heavy noise was heard, then followed with constant beeping, then shrill whistling, then beeping again but regular and softer.

The device seemed to be working and reacting to the presence of the teacups, but it began to hum horribly, making a piercing static noise.
Then the constant noise seemed to distort, as if something or someone were disrupting the signal.

Twilight immediately decided to adjust the signal to see if the disturbance was only temporary, but the more she adjusted the device, the more audible the disturbance became, until it became the semblance of a voice. A distant, muffled voice, but one that became more understandable as Twilight made further adjustments.

" .................. .... .... ... . . .. . . . . .... .. . order .. . . . . . . . . . . . . . . . .. "
" ............ . ................. . . .. ............ . . . . . .. .. .. . . . . . . .. . . .. . . ... . situation ... .. . . .... "

Twilight continued to adjust her device until she managed to pick up a slightly clearer and more audible sound

"........... .. . . . . ..... . . . ...... . .. . . . . .. .not respond....... . ...... .. . . . . .... . ... .. ... .."
" ............... . . . ...... .. . .. . . .. . Report immediatly.... . . .. .... . . .. . . .. .. ....... "

Various theories raced through her mind, so much so that she didn't know where to start for some semblance of an explanation.

The strangest thing was that the device worked, it worked well in fact, it could detect magical objects, but it could also detect other, as yet unexplained, things.

These voices, Twilight couldn't understand where they came from, who, when, where or why.

All these simple questions were unknown to her and beginning to feel the weight of fatigue she decided to go to sleep but her sleep was very disturbed, simple questions that had no answers.

It's decided: the next day she'll go and see Princess Celestia, her teacher, her mentor and her guide - someone like her, with over a thousand years of existence, can give her answers, or at least the beginning of a clue to an explanation.

Twilight, wanted, answers !